Great Mills High School was placed on lockdown after 17-year-old Austin Wyatt Rollins, a student at the school, walked into the hallway and shot a 16-year-old female student around 8 a.m., police said. A 14-year-old male student was also injured. The school resource officer fired at least a round. It was unclear if Rollins took his own life or was killed by the the school resource officer. It was also unclear if the 14-year-old student was injured by Rollins or whether the deputy's shot injured him.

An armed Scott Mielentz stormed into the Panera on Nassau Street after 10 a.m. as customers and employees fled through the back of the building. Police negotiators allegedly tried to get Mielentz to give himself up peacefully for several hours until around 3 p.m. when police shot and killed him, as he brandished a pellet gun.

Kenneth Lipscomb was being sought by police after a dead body was found in his home. He wasn't considered a suspect by Laurel County Sheriff's deputies, but they wanted to find him to find out what he knew. Shortly after police found his 2011 white pickup, they signaled for him to get over. But Lipscomb allegedly didn't follow their signals, and took off away from the pursuing police, who chased him. About a mile and a half later, Lipscomb drove off the road, and got stuck in some mud. Police approached the truck, and Lipscomb allegedly shot himself once in the chest with .45-caliber pistol.

Officers responded to a disturbance call before 10:30 p.m. The officers were confronted by a man with an AK-47. Duane Preciado allegedly came out of his house, where he lived with his wife, with the weapon, at which point both officers commanded him to drop it. The officers retreated to their patrol cars. When Preciado reportedly began moving toward them, allegedly making threatening statements, both officers shot and killed him.

Police received the report of a stabbing in progress at Our Place Community Center shortly after 8 a.m. Police said officers chased Angel Uolla on foot. He allegedly assaulted officers during the arrest attempt, and Uolla was shot and killed.

Two officers followed a vehicle leaving an alleged "gang house" at about 9:45 p.m. When they pulled the vehicle over, Santiago Calderon, who was driving the vehicle, fired at officers before fleeing east. Calderon's vehicle hit another vehicle, and he ran from the car and exchanged shots with the two officers. Calderon was killed.

A deputy stopped when he spotted a man acting erratically at an intersection. The unarmed man approached the deputy despite his commands to stop. The deputy fired one shot and killed Danny Thomas.

At 3:30 a.m., the Washington Parish Sheriff's Office was contacted in reference to a suspicious person on a motorcycle at the boat launch on Poole's Bluff Road, police said. Shortly after a deputy arrived, a fight broke out. Two Bogalusa officers arrived and saw Young struggling with the deputy. Police shot and killed Young.

Salt River police said they were called about a person "making threats and gesturing that they had a weapon" at the Pavilions at Talking Stick Shopping Center, at about 11:30 a.m. March 23. The person allegedly was armed with an unspecified weapon and advanced on an officer "in a threatening manner." The officer shot and killed the man, who died about two weeks later.

Around 3 a.m., police responded to a reported domestic dispute, police said. Robert Nova had allegedly doused his wife in gasoline and was threatening her with a lighter when he was shot and killed by police.

Michael Leroy McGinnis was shot and killed when officers attempted to arrest him at his apartment on two warrants for Indecency with a Child and a motion to provoke warrant around 9 a.m. Police found McGinnis armed with a weapon in the back bedroom of an apartment, and after 11 minutes of negotiations, McGinnis allegedly moved his handgun in a threatening manner and was shot and killed.

A man shot a gun in a parking lot outside Cafe Pulido. Officers pursued the suspected gunman when he drove off. The man crashed into two cars about 7 miles away, killing him. Police said it was possible he died from a self-inflicted injury.

Police were called because Subramanyam Rajagopal was allegedly assaulting family members. After a standoff of five hours, shots were heard from within the home, and Rajagopal was later found dead.

An Anchorage officer shot and killed Zander Clark after he stabbed a woman and then, after a chase, charged the officer with a knife, police said.

Joe Green allegedly shot and killed himself after firing on deputies during a standoff. Deputies had gone to the home for a welfare check.

Nathan Castle was shot by a deputy after a chase. He allegedly got out of the truck armed with a shotgun. The deputy shot and killed him.

Police responded to a home around 10:21 p.m. for a report of a disturbance. Police said that when officers arrived, they found Juan Carlos Romero armed with a handgun. Police said Romero fired at the three responding officers and was shot and killed. A witness disputed that version of events.

Evan Bashir allegedly killed one woman and seriously wounded two others at a Nampa house before he was shot to death by police.

Police were called to a home to serve a search warrant for the Arizona Department of Transportation regarding an investigation into identity theft and forgery. Several people left the residence without incident. Police said they then saw Gonzalez flee down the hallway where he hid in a back room inside a closet armed with a handgun. As officers were still outside the home, Gonzalez reportedly confronted officers, pointing a gun at them from the hallway. Three officers shot and killed Gonzalez.

Around 8:15 p.m., police responded to check the welfare of a man who called 911 saying he was suicidal. As the officers approached the man, he produced a pistol and a knife. Both of the officers shot and killed William Dominguez.

A trooper chased a suspected shoplifter, Aaron Ibrahem, through a Walmart before he ran outside, where they shot and killed him. Police allege he fired a handgun at them.

After a chase and a standoff, police attempted to take Robert Shaw into custody and shot and killed him when he moved.

An officer attempted to pull over Marco Saavedra after he ran a stop sign. Saavedra did not immediately stop, driving six blocks before stopping. He got out of the vehicle and pointed a gun at the officer, who shot and killed him.

After 911 got a call from a woman about a domestic fight, officers approached the apartment to arrest the man, but Christopher Gatewood came out armed with a knife. Officers ordered him to drop the knife. He advanced toward the officers, and he was shot and killed.

After a vehicle chase and gunfight with police, Rodney Toler was shot and killed.

Edward Van McCrae was in the backseat of a car when Officer D.E. McGuire initiated a traffic stop, police said. McCrae was allegedly moving suspiciously and reaching toward concealed areas of the vehicle. Police said McGuire ordered McCrae to stop and requested backup. After McCrae was removed from the vehicle, he fought with McGuire. As the two fought, a handgun allegedly was seen by McGuire, and he shot and killed McCrae. Witness's names were withheld by police.

Officers with the Reno Police Department responded to a call of a burglary in progress at the Peckham Plaza Mini-Storage. While checking the area of the storage units on foot, two Reno Police officers came across an allegedly stolen Honda Civic parked behind one of the buildings. Nicolas Sedano was in the car. Police shot and killed him as he drove away and struck an officer.

Police were called around 8 a.m. following reports of a burglary. Police said the owner of the home had an order of protection against the man. John Wussler had lived at the house previously and had returned to gather some property, police said. When police arrived, he fled the backyard by jumping the fence. An officer chased him on foot through a nearby apartment complex, where a fight began. As the officer drew a Taser, the suspect allegedly removed a handgun from his waistband and pointed it at the officer, who exchanged weapons and shot and killed him.

Greenville Police responded at 2 a.m. after receiving a 911 call of a domestic-related stabbing. The first officer who arrived found Brian Bellamy allegedly holding a knife. The officer ordered him to drop the knife, and he advanced on the officer with the knife. Bellamy was shot and killed.

About 5 a.m., deputies attempted to pull over a man believed to be involved in vehicle burglaries. Joseph Johnson fled in his car. After a brief chase, Johnson crashed into a ditch, police said. The deputies and Johnson exchanged gunfire. Johnson was shot and killed, and one of the deputies was shot and wounded.

Christopher Hall allegedly shot and wounded a Jackson officer who was responding with two other officers to a domestic assault complaint. Hall was shot and killed. Police alleged that Hall fired first.

Luis Alvarez's mother, Esmeralda Vega, said she called police because her son was fighting with his girlfriend and wouldn't stop. According to Vega, the girlfriend wanted to leave, but Alvarez wouldn't let her. When police arrived, Alvarez went outside with a knife. Family members said both hands were up when Alvarez was shot and killed.

Clackamas County deputies heard a gunshot from inside while serving a warrant for a man's arrest. Deputies went to the home around 12:40 p.m. allegedly to serve a misdemeanor warrant and check on the man's welfare. Hours later, he was found dead of an allegedly self-inflicted gunshot.

Police responded around 2:30 a.m. to the Budget Inn in Okmulgee for a disturbance call. Police say they found a man who was threatening suicide and had a knife to his throat. Officers reportedly told the man to drop the knife, but he did not comply and advanced on officers who shot and killed him.

Police said two people, a man and a woman, ran from a hit-and-run collision before noon. The woman was taken into custody, but the man broke into a house nearby. Hours later, police entered the house and found the suspect in a crawlspace. Police said there was an exchange of gunfire, and Mitchell Nelson was killed.

Saheed Vassell was waving a metal object at passersby when he was fatally shot by police when police responding to 911 calls for a man with a gun said he "took a two-handed shooting stance" and pointed the object at them. Neighbors and family said police were aware that Vassell was mentally ill, and he was a harmless fixture in the neighborhood.

Around 6:45 p.m., officers responded to a call of shots fired, hitting the caller's home. Police started containing Alexis Stinson's home across the street and contacted family members who said Stinson had already fired shots inside the home. Stinson allegedly ran out with a rifle, pointed the weapon at police and fired at three officers who shot and killed her.

An alleged crime spree started about 9 p.m. Tuesday with an attempted carjacking and two carjackings that left two women wounded. About 3:30 a.m. Wednesday, Allan Farris exchanged gunfire in Detroit with an undercover trooper he allegedly tried to carjack. Shots also were fired when officers saw Farris behind a garage about four hours later. He later was found dead. No officers were wounded.

U.S. Park Police officer Jose Ramon Bumbray, 46, killed his wife, Brenda Jenette Harrison-Bumbray, 50, before turning the gun on himself, police said.

Police said Frazier fired several shots that struck a New Wilmington Borough Police cruiser. He allegedly got of his vehicle still carrying his gun and after firing at another passing car continued to fire at a New Wilmington officer. After state police arrived, Frazier appeared from behind a shed still carrying a gun, and when he ignored their orders to stop and continued walking toward officers, they shot and killed him.

Police said a man called 911 around 2 a.m. claiming he was going to kill his wife. When the first officer arrived at the home, the man allegedly confronted the officer with a rifle. The officer told him to drop the gun, but instead, the man pointed it at the officer, and the officer shot and killed him.

Police were called just after 1 p.m. on report that a person armed with a knife who was threatening to kill a resident and others. When officers arrived, they were confronted by the knife-wielding individual, and they shot and killed Rafael Ramirez.

A deputy on patrol, who knew there was a capias warrant for Bell, saw him standing in a yard, police said. Raymond Bell fled from the officer on foot through a small patch of woods, through a creek and onto a dirt road. Bell allegedly turned and pulled a gun and was shot and killed by the deputy.

Searcy County sheriff's deputies and officers from the state Department of Correction were pursuing Daniel Allen Yielding based on an outstanding warrant for a parole violation and reports that he was seen fleeing a home, police said. Police spotted Yielding allegedly armed with a knife in a wooded area. He was ordered to drop the knife but refused to comply and moved toward a correction officer, who shot and killed him.

At 12:30 a.m., a Bloomer officer spotted the vehicle of the domestic abuse suspect and attempted to stop it. The driver failed to stop, and a chase began. Deputies from the Barron County sheriff's office took over the chase and requested the Barron Police Department to set up spike strips on U.S. 53 at U.S. 8. The spikes punctured three tires on the car. As the vehicle came to a stop, the driver failed to get out or obey deputies' commands. Because he might be armed, deputies approached the vehicle using a flash bang and shields. Inside, they found the driver, Michael Haile, dead from a self-inflicted gunshot.

Jonte Bender was chased by Goodlettsville police on Interstate 65 North. During the pursuit, the vehicle driven by Bender crashed. After the crash, he was found to have a fatal, self-inflicted gunshot wound, police said. He was allegedly being sought for several crimes.

Juan Markee Jones allegedly fled an attempted arrest at a domestic violence incident. He was reported to have driven to a woody area where, after stopping, he made a sudden movement near police, and he was shot and killed.

Officers responded to a domestic violence call just before 6:30 a.m. According to police, the caller said her boyfriend had assaulted her and had a handgun. When officers arrived, they found the woman had escaped the home. The man came outside with a gun drawn, allegedly pointing it toward the woman and police. They reportedly told him to drop the gun and then shot and killed him.

Honolulu Officer Christopher Robert Kapua-Allison, 50, shot and killed his wife, Jolene Rae K. Kapua-Allison, 50, and then killed himself.

A 29-year-old Billings man was shot and killed by a Billings police officer after allegedly charging at officers with a knife and not responding to commands, police said. Officer Brian Weaver shot the man three times, killing him. A second officer, Jairo Solorio, simultaneously fired a stun gun at the man.

Police were called just before 5:30 p.m. for a report of "explosions" in the Feeding Hills neighborhood. The explosions turned out to be gunfire, prompting police to evacuate surrounding homes. After hours of trying to communicate with Michael Kerr, police broke into the house around 11:30 p.m. and found him dead from a self-inflicted gunshot wound.

Officers were driving near Corbin Avenue and Hamlin Street at about 10 a.m. when they got a "LoJack hit" alerting them that a vehicle was stolen, police said. They pursued the vehicle for about seven minutes, then chased the driver on foot after he bailed from the vehicle. He was shot and killed, although the details as to what precipitated the killing were withheld by police.

A 44-year-old Billings man was shot dead by police after waving a pellet gun and threatening people inside a casino. The shooting took place at the Lucky Lil's Casino at about 1:30 a.m., police said. Sgt. Bret Becker fired the fatal shots.

Two officers arrived at a check-cashing business after a report that it was being robbed, police said. Soon after the officer arrived, a man armed with a gun walked out of the business. The man allegedly ignored commands to drop the weapon and was shot and killed.

Officers from several jurisdictions, including Osseo police, went to arrest a man wanted for a probation violation. As they approached, the man allegedly displayed a gun and shot himself.

Officers said they were flagged down about a possible suicidal man with a gun. Police said the man's wife found him highly intoxicated with a pistol in his lap. Before police arrived, the man drove off in a Chevy pickup. Just before 8:30 p.m., police said someone called police after finding a man passed out in a pickup. Police said when officers tried to talk with the man, he drove off again, heading east with police in pursuit. Police said the man fired two shots at officers before stopping his truck. Police said officers heard a third gunshot and found the man dead.

A deputy with the Alleghany County Sheriff's Office received a call from the communications office about a person in the lobby requesting to speak with an officer. The deputy found Chad Montgomery waiting in the lobby. Montgomery allegedly pulled a machete-style knife and charged at the deputy. The deputy shot and killed him.

Winn Parish sheriff's deputies responded to Lemoine Road to serve a civil arrest warrant on Kendall Lemoine. Upon the deputies arrival, they saw Kendall Lemoine and Betty Lemoine standing outside the residence, each armed with guns. Shots were exchanged with deputies. Betty Lemoine was killed. Kendall Lemoine was severely wounded and died on April 20.

Officers went to a home about 1 a.m. in search of a man wanted by police. When officers arrived, they saw Rumondale Jones stabbing a 20-year-old woman. Jones allegedly approached an officer, who fatally shot him.

Troopers tried to stop Steven Brooks for erratic driving in South Strabane. The St. Petersburg, Florida, man drove off the wrong way down Interstate 70 before crashing into a bridge support column. Brooks then fled on foot and scaled a fence before pulling out a gun. Police said he refused orders to drop the weapon and was shot and killed. He was wanted for allegedly fatally shooting a Florida trombone player as she left orchestra practice.

Trinidad police were dispatched on a disturbance call. Upon arrival, officers noticed a front window had been broken out of the residence. They contacted a man holding a large piece of broken glass. Officers told the man to drop the glass, but he refused and allegedly advanced, and they shot and killed him.

Bruce Arnold Allee was on the run after allegedly walking into a family's garage, trying to carjack a running vehicle with a little girl was inside and then shooting her father when he tried to intervene. He was shot and killed when police caught up with him.

Petrica Peter Muntean died April 27, two weeks after he was shot by police. Officers had responded to reports of a domestic violence incident between Muntean and his mother, but Muntean fled the scene, police said. Muntean again tried to run when officers attempted to contact him the next morning. Officers used less-lethal round to try to incapacitate him, but he continued to run, and he was shot and killed.

Police were called on a report of a car that had crashed into a fence at about 2 p.m. When they found the car, the driver had a rifle. Eduardo Andrade was killed during an exchange of gunfire with police.

Jose Pietri was wanted for the murder of Derek White, 47, and wounding of a woman. He was chased by police to Cumberland County where he was fatally shot by police, police said.

Two Tishomingo police officers and a Johnston County sheriff's deputy responded to a family violence situation. Justin Monjay allegedly drove away and rammed his vehicle into a Tishomingo patrol car. After he continued to push the patrol car back, the sheriff deputy and Tishomingo officers shot and killed him. Police alleged vehicular assault.

A little after 3 a.m., an agitated man called dispatchers and said he was holding a woman hostage in a vehicle. Not knowing who made the call, or whether the threat was legitimate, and having no officers in the vicinity, UPD Millcreek officers were dispatched to the area. Police got the license plate of a truck as it left the area. At about 4 a.m. UPD received information that West Valley City police were in pursuit of the same truck. During the pursuit through Magna, West Valley City officers deployed tire spikes to disable the truck, and it eventually came to a stop. A UPD officer who arrived to assist approached the vehicle and shot and killed Lonnie Bowen inside the cab of the truck, as he held the woman at knifepoint. The woman who was inside the truck was not struck by gunfire. She was treated for injuries allegedly inflicted upon her by the man.

Justin Oakes came into the sheriff's office looking for a place to stay at around 10:30 p.m. He asked deputies for water, which they provided, and then remained in the vicinity of the sheriff's office until 2 a.m. Oakes went inside the restroom where he called 911 several times and claimed he had been poisoned. A deputy and commander attempted to enter the restroom, but he pushed against the door, not allowing them inside. He was shocked with stun guns, but then allegedly stabbed the deputy twice in the leg and wounded the commander. Oakes was shot and killed.

Deputies were called to the mobile home park at about noon after a manager said a man and woman were parked in a car there and refused to leave. After a standoff, David Gino Teneyuque was shot and killed by deputies when he allegedly pointed a handgun at them.

A deputy attempted to pull over a motorist, but the motorist, William Simcoe, would not stop and a pursuit began. At the end of the pursuit, Simcoe allegedly fled and brandished a .45-caliber handgun at the deputies, who shot and killed him.

Police were called to a shots-fired complaint. Police arrived around 10:15 p.m. and found a man in the front yard suffering from a gunshot wound. The alleged gunman, Mario Galarza, 27, barricaded himself inside the house for several hours. Hostage negotiators arrived and attempted to make contact with Galarza. After numerous attempts had been made, Harlingen police entered the residence at around 5 a.m. and found Galarza and Yaredi Reyes Juarez, 27, both dead.

James Bauduy was wanted for questioning regarding a murder and a carjacking. Sgt. Bruce Vail and Cpl. Randolph Hovland shot and killed him because he made a movement. Whether he was armed at the time he was killed was not immediately reported.

Multiple agencies responded to a shooting just after 8 p.m. Police said a 28-year-old man had fired shots at his wife's vehicle. Around an hour later, police said the man had killed himself.

Lockwood Adrian Gibson was shot and killed after a high-speed chase.

Terrance Carlton matched the description of a man suspected of shooting two men when police shot and killed him about a block away from the initial shootings. Police alleged he made a sudden threatening movement, but he was holding a cell phone in his hand. A handgun that had a DNA match with Carlton was found nearby.

Keith Walz of the West Buechel Police Department and Gary Phelps of the Hurstbourne Acres Police Department shot and killed Miguel Escalona Vivas after he allegedly shot and injured a man and allegedly pointed the gun at the officers.

Police were called for a welfare check just before 1:30 p.m. when a passer-by reported seeing a man slumped in his vehicle in the entrance to an Ikea's parking lot. Officers approached the vehicle and noticed Carlos High had pulled out a rifle, police said. He allegedly refused to put his hands in the air, and he was shot and killed.

A man was confronted by hotel employees in the lobby of the Embassy Suites around 5 a.m. The man ran from them, going up the stairs to the second floor, where he caught an elevator to the fifth floor. On the fifth floor, police said he tried to break into a hotel room at gunpoint. He was unsuccessful and then took the elevator up to the seventh floor where he was confronted by park police officers. After trying to break into another room, two officers shot and killed him.

Joe David Williams allegedly shot and killed himself after a traffic stop and a chase, during which he allegedly shot at the pursuing officer.

Police received a call about a disturbance at a home. When officers arrived, they found Isaac Jackson, allegedly armed with knives. Jackson attacked the officers, injuring one of them with a knife. Another officer shot and killed him.

Myra Lisa Micalizio was allegedly trespassing when police attempted to stop her. Police said she drove in the general direction of Butte County Deputy Charles Lair, who shot and killed her. Police alleged vehicular assault.

Desmond Allen allegedly shot and killed himself when police caught up with him in a parking lot. He was suspected of murder.

Police responded to a 911 at about 2 a.m. regarding shots fired at the Extended Stay America Hotel. Officers found Nolberto Leon allegedly waving a gun in the hallway. He then shot himself and confronted officers, threatening them with the firearm. Leon was shot and killed.

Shukri Ali Said was fatally shot around 7:15 a.m. when Johns Creek police were dispatched to the area after a 911 call regarding a "demented person" armed with a knife. Less-lethal efforts including a Taser and a foam impact round were attempted, police said. Said did not drop the knife, and two officers shot and killed her.

Trooper Justin Parman shot and killed Joshua Ewing during an exchange of gunfire during a domestic dispute.

A burglary was reported at a home about 9:40 p.m., police said. Officers arrived at the home, which was having construction work done. As they searched the home, the officers came in contact with a man and shot and killed Allen Mitchell, as he advanced upon them, armed with a crowbar.

During a 6-hour standoff with police, Eric Landis released a woman unharmed, but later killed himself as police shot tear gas inside the garage where he had barricaded himself, police said.

Abadi Gebregziber, 64, allegedly stabbed and wounded Alganesh Gebrezgabiher, 51, and stabbed and killed Selam Habte, 18, Azeb Demewez, 33, and Russom Habte, 19. Abadi Gebregziber was found in the apartment complex where the stabbings took place and was tasered then shot and killed.

U.S. Immigration and Customs Enforcement and Removal Operations agents were serving a warrant on a man around 7 a.m., when the man ran and fired at officers. Agents shot and killed him.

Police said they were conducting a narcotics investigation. While attempting to make an arrest, Manuel Palacio, who was allegedly armed, confronted them. Police said during the confrontation, an officer shot and killed Palacio.

Officers were investigating a disturbance around 9:15 p.m. when they heard gunfire coming from inside a home. The man allegedly shot at officers, who shot and killed him.

The Los Angeles Police Department's fugitive warrant team served a warrant at a home around 6:45 a.m. Joshua Corbett barricaded himself inside the residence. During the standoff, he killed himself with multiple knife wounds.

Sean Louis Justice, also reported as Sean Louis Justin, allegedly assaulted deputies with an ax and a bayonet when he was shot and killed.

Police were called because Anthony Trujillo was acting erratically. He allegedly assaulted deputies with a machete when he was shot and killed.

About 4:50 a.m., three off-duty deputies working at the Ivory Restaurant were involved in a fight inside the business. During the fight, a Taser was used on a man. He was released and left the restaurant. Soon after, Norris Duffy was seen outside next to his SUV pulling out a rifle. One of the off-duty deputies shot and killed Duffy.

A man was being chased because he was armed and suicidal. When troopers attempted to stop him, he fled. He stopped and allegedly shot and killed himself.

Deputies responded to a home after a man allegedly assaulted a relative. He fled into nearby woods with a large-caliber handgun and threatened suicide. Upon arrival, deputies heard a single gunshot from the woods and found the man lying in the woods. When officers approached him, he sprang up, began cursing at the deputies and fired at least several shots in their direction. Deputies and witnesses retreated, but moments later the man emerged and began firing at officers who shot and killed him.

Police responded to a report of domestic violence when they shot and killed Mitchell Simmons, who allegedly had a gun.

Shortly after 1:40 p.m., the Prague Police Department received a call about a man assaulting a woman while driving. Prague police officers found the driver and chased him. An Oklahoma Highway Patrol trooper disabled the man's vehicle. The vehicle crashed about a mile south of Seminole. At the end of the chase, the man raised a rifle toward officers, who shot and killed Franklin Vaughn.

A 73-year-old man was killed while brandishing a firearm at Guernsey County sheriff's deputies who were executing a doctor's order to convey him to a mental health care facility, police said.

Peter Boden was shot and killed after he stepped out of a pickup truck holding a shotgun during a standoff with police. Three deputies were hit by buckshot pellets when they were trying to establish a perimeter.

Police officers with a gang unit were patrolling when they approached a vehicle with multiple people inside. One of the three men inside the vehicle allegedly had a gun. Police said that man fired the gun once at officers. He was shot and killed by two officers, police said.

Police said they responded to a domestic disturbance call at 4:31 p.m. Lisa Rivera was involved in a domestic disturbance in a parking lot. Rivera was armed with a small caliber handgun during the incident. After a short struggle, a YPD officer shot and killed Rivera.

After a chase and attempted car thefts, Philip Gibson, allegedly pointed a replica gun at police and was shot and killed. Gibson was allegedly suspected in a theft where a gun was stolen.

Immigration and Customs Enforcement special agents were working a narcotics investigation and met two people. Police said Giovanny Leon pulled a handgun out and attempted to rob an agent, who shot and killed him.

At about 11:06 a.m., Trooper Tyler Davidson conducted a motor-vehicle stop due to the vehicle having an expired inspection sticker. After speaking with the driver, Davidson returned to his cruiser to check the driver's information. As Davidson was running the information, Austin M. Durocher, who was still sitting in his vehicle, shot and killed himself.

After a traffic stop at a gas station, police alleged that Chauncy Reed got out of the SUV and began shooting while the officer wrestled with his brother, Elliot. The officer shot and killed Elliot Reed. Chauncy Reed was charged with aggravated assault on a police officer and capital murder. Police allege 26-year-old caused his brother's death.

Kenneth Carter was shot by Morristown police when he allegedly rammed officers' vehicles during an attempted escape, police said. He was allegedly wanted for an undisclosed warrant.

Police said Barry Freeman started shooting dozens of rounds using a rifle around 9:30 p.m. He struck four homes, several police vehicles, and killed Jeffrey Kempf before being killed by police.

Police were called at around 10:45 p.m. Jacob Eldridge allegedly was holding a 20-year-old woman against her will with a knife. He allegedly refused to comply with police demands and stabbed the woman. Officers shot and killed him.

About 6 a.m., troopers were helping Talihina police serve a felony warrant when the person opened fire. A fire started inside the house in downtown Talihina and spread to neighboring buildings. The person was shot and killed.

After 11 p.m., dispatchers received a call regarding a possible armed home invasion. Portsmouth Police officers arrived and were confronted by two armed suspects—a man and a woman. Police said the man and the woman did not comply with the officers, and an officer shot and killed Willie Rogers Marable.

Dearborn Heights police were dispatched to contact a "distraught woman." An officer spotted a man walking on Telegraph, carrying a rifle. The officer made contact with Jim Collins Jr., and words were exchanged, after which the officer shot and killed Collins.

Deputies were called to a home around 10 p.m. in response to a domestic disturbance. James Brian Kay allegedly had shot multiple people in the home with a shotgun. Kay came out of the house with a shotgun and fired in the direction of a patrol car, police said. Deputy James Justice shot and killed Kay.

Police saw someone inside a business with a crowbar trying to break into a safe. He was ordered to come out and surrender. He allegedly came out of a side door with a gun in his hand and pointed it at least two officers. Officer Scott Weisbrod shot and killed Anthony Trice.

Police were called around 6 p.m. for a report of a man pointing a gun at people. An officer spotted the man walking away from a VIA bus stop. The officer attempted to get the man's attention by honking at him and around the same time, a VIA police officer arrived. Police said the man turned toward the San Antonio police officer and started shooting at him. The officer returned fire from inside his patrol car, shooting through his window. The officer moved to a different position and resumed shooting at the man, who walked approximately 14 yards before collapsing and dying.

Quincy police Officer Steve Bangert shot and killed Rollie J. Davis while investigating alleged suspicious activity at 8:28 p.m., and the officer encountered Davis. Davis reportedly pulled what appeared to be a pistol.

John Mann, who had shot at a police officers serving a warrant and barricaded himself inside a home, shot and killed himself during a standoff with police.

Around 7 p.m., police received a call about a man chasing family members with a knife at a residence. The man's brother was outside the home when police arrived. He indicated that it was his brother who was acting in a threatening manner, and his mother was also inside and in a locked room. Police entered the home when they noticed what appeared to be a fire starting inside, and they shot and killed the man. The mother was removed from the home safely.

Police were dispatched to a report of a man prowling vehicles at 11:50 p.m. Officers located the suspect vehicle shortly after. They tried to stop it, but the driver fled, and police decided to not pursue. But, they later located the vehicle again and tried to stop the driver again, but the vehicle sped away. Officers once again decided to not pursue the driver. Minutes later, they found the vehicle crashed on Southwest Pleasant View Drive. Officers tried to contact the driver and he exited the vehicle with a hatchet and charged at them. Officers Joshua Price and Brendon Hayes shot and killed Dmitry Bullard.

Norma Pena, Reynaldo Pena's mother, called police to get help with her son in a domestic disturbance. When police told him to get out of a vehicle, he had two knives in his hands. Police said Reynaldo Pena came toward officers in an aggressive manner with the knives despite verbal commands to stop, and police shot and killed him.

About 9:30 p.m., deputies responded to a report of a domestic dispute involving a weapon on Shadow Lane. The victim of the dispute, who was hurt, told deputies the intoxicated man who hurt her had made threats to kill the police, so deputies tried to get him to walk out of the home. Instead, deputies say, he sped out of the garage in a vehicle and hit a deputy as deputies shot and killed him.

Police officers were dispatched around 10:30 p.m. after receiving reports of shots fired. When police arrived, they found a man firing shots into the ground. Corey Cordova allegedly threatened officers when they approached him. He ran to a house and barricaded himself inside. Police said that Cordova made a threatening gesture with a handgun toward officers around 12:10 a.m., and police shot and killed him.

Police received a call from a person who had been on the phone with a woman who was going to meet with her ex-boyfriend at a remote location. The person calling said that he could hear the woman screaming and that he believed that she was being assaulted. When deputies arrived, they found Ronda Ebeling and Ray Wyatt standing in a field. Wyatt shot Ebeling in the upper body and fled on foot. Additional deputies arrived and swept the area, eventually finding Wyatt hiding in a bush nearby. He was shot and killed.

West Memphis police tried to stop an eastbound vehicle on Interstate 40 about 5 p.m. As they pursued, the driver reportedly struck police patrol cars and reversed direction. He began driving westbound in the general direction of officers in eastbound lanes, police said. Officer Matt Presley fired on the vehicle, which struck an eastbound tractor-trailer rig. Ronald Clinton was killed by the gunshot. Police alleged vehicular assault.

Kevin Holroyd allegedly shot and killed Clinton Street, 30, at his home round 10 a.m. Holroyd drove to an apartment in Panama City and exchange gunfire with police. After a near 5-hour standoff, Holroyd was found dead from an apparent gunshot wound. It was not immediately reported if he shot himself or if he was shot by officers.

A U.S. Customs and Border Patrol agent shot and killed undocumented immigrant Claudia Patricia Gomez Gonzalez when a group of people allegedly rushed the agent. Witnesses disputed the police account.

Joshua M. Gomoll was allegedly approaching people in Fritse Park with a knife, behaving erratically. Police shot and killed him, although details regarding what precipitated the killing were withheld.

Dustin Montano was wanted for murdering a woman and her daughter in New Mexico. Police said he drove to northeast Colorado. Morgan County deputies said when they confronted him outside a Walmart, he made a threatening gesture and they shot and killed him.

Deputies were alerted to a driver who was driving recklessly on a wind farm in a white pickup truck with Nevada plates. After John Jay Lewis got out of the vehicle, he allegedly pulled a large military-style knife and threatened deputies. An Elmore County deputy shot and killed him.

Stagecoach Police Department Officer Robert Lee, shot and killed his brother, Rocky Lee, an off-duty Harris County Sheriff's Office deputy, police said.

Homer Woodroe Tyler was reported to be armed with a firearm and driving a pickup en route to a family member's home. He was stopped by officers from Silsbee police and the sheriff's office around 3 a.m. He allegedly got out of his vehicle and threatened officers with a handgun. One Silsbee officer and one deputy shot and killed him.

Raul Rivera was shot and killed by police after reportedly be shot with bean bags and tasers, yet still advancing on police with a knife.

Deputies responded to a request for service to check the well-being of a reported suicidal man. When the deputy arrived at the rural Everton home, he was confronted by a man with a knife whom he shot and killed.

Police responded to an argument between a landlord and a former tenant. Armando Osuna allegedly hit an officer with a pipe and was shot and killed.

An off-duty officer on his way to work shot Zane James, who was driving a motorcycle, after he allegedly attempted to flee during a traffic stop. The officer tried to pull James over because he allegedly matched the description of someone who had robbed two Sandy grocery stores—a Smith's and Macy's—earlier that morning.

After 1 a.m., Los Angeles police officers responded to a report of an assault with a deadly weapon, police said. When officers arrived, they were directed to an angry man who was on top of a carport. The suspect came down and began throwing objects at the officers, who responded with various less-lethal means. He allegedly armed himself with a pickax and ran to a nearby residence, where he attempted to enter. He was shot and killed.

Jerick Gray was shot and killed by police in Thomasville after a bank robbery and chase. He allegedly stabbed a store owner before he was killed.

Around 8:45 a.m., police were dispatched to the area of Planet Fitness after receiving a call regarding an individual armed with a knife, police said. When police arrived, the man allegedly refused to obey their commands, prompting officers to use less-than-lethal force. The man allegedly advanced toward officers, and he was shot and killed.

Two computer crimes detectives went to a home after reports of someone downloading child porn. When crews arrived, Andres Estrada, 21, and his 18-year-old brother, Claudio, allowed the detectives to come inside. Police allegedly found child porn on Andres' cellphone, police said. When one officer went outside, a brother attacked the officer inside. The officer came inside and shot and killed Andres Estrada.

Shamir Deangelo Terry allegedly entered a Circle K and walked up to an employee while pointing a handgun at them. Terry became frustrated with the employee and fired a shot in the store before taking an undisclosed amount of money and running off in the direction of the Applebee's on Riverside. A deputy was driving through the parking lot of Applebee's when a witness flagged them down and told them about the robbery. After a brief foot chase, Terry allegedly pulled out a gun and pointed it toward the deputies, who shot and killed him.

Police responded to reports of a domestic incident around 5 a.m. When officers arrived they found two people dead inside, as well as two children unharmed. A man was spotted fleeing, and police pursued. A trooper ran him off the road causing the suspect's vehicle to roll. He was shot and killed, although details as to what precipitated the killing were withheld by police.

Deputies responded to a home after 8 p.m. in reference to a suicidal person. Josh Nash Bryant had barricaded himself in his father's home when he was shot and killed by police after allegedly coming out with a gun and threatening deputies.

Police said Joshua S. Stanford shot at officers while they were pursuing him for a suspected package theft, and they shot and killed him.

Deputies were called to Wyndtree Apartments at 8:20 p.m. for a man with a gun. Deputies found the man with a gun and determined his girlfriend and children had fled and were with neighbors. Deputies talked with the man about 45 minutes, trying to convince him to put down the gun. Deputies shot the man with beanbag rounds but instead of giving up, the man went into the apartment but then returned and continued to talk with deputies. Deputies tried to use beanbags a second time, but the man shot and killed himself.

Jessica Adams brought her two children to a home where the children's father, Thomas Adams, was. The two parents got into a fight, and Jessica Adams took the children inside the home then stepped back outside to continue the argument. A person inside the home called 911 to report the altercation, and as deputies responded, the resident reported shots were fired, and Jessica Adams was possibly hit. When deputies arrived, they found her lying on the ground with a gunshot to the stomach, dying shortly after. Thomas Adams was gone. Police found him, and negotiations took place for several hours while he threatened to kill himself. The officers found Adams dead of a reportedly self-inflicted gunshot.

At 11:28 a.m., police received a call from a woman saying her boyfriend was armed with a pistol and a rifle and was suicidal. The Tehama County Sheriff's Department arrived in an armored vehicle and began negotiations with Flores. After about 44 minutes, Flores pointed a rifle at the vehicle, and they shot and killed him.

A 911 call came in from a man, who said he had just shot his wife in the head. When police arrived, they found Roger Dale Sims on his front porch with two guns. He walked into the yard and started firing. Sims then allegedly put one gun down, on the back of a pickup truck, and pointed the second gun at his head, then pointed the guns toward the officers, who shot and killed him.

Charles Frank Walter Jr. allegedly shot and killed himself after a standoff with police.

U.S. Marshals and federally-deputized BCSO deputies had been tracking Wes Allen for a couple of days before finding him at the Motel 6 around 12:40 a.m. Allen started to flee, then stopped and brandished a handgun, when he was shot and killed.

Around 11 a.m., the Benton County Sheriff's Office received a report of a suicidal man with a gun inside a car. By the time deputies responded, the man had gone inside a house and an hours-long standoff began. The man was allegedly threatening a 49-year-old woman with a gun and preventing her from leaving. Snipers were positioned outside of the home. One of the snipers shot and killed Douglas Conner.

New Jersey State Police received an alert regarding Todd Gregory. Gregory allegedly had gone to the home of a man with whom he had a dispute and raced back and forth in his vehicle in front of the home and fired a gunshot toward the home, striking a vehicle. New Jersey State Police found Gregory driving into New Jersey and attempted to pull over his white pickup truck, but he did not stop. Troopers followed Gregory to Old Mine Road in Hardwick, where they lost sight of his vehicle. They found the pickup truck in a secluded area. As troopers approached the vehicle on foot, police said a gunshot was heard from within the vehicle. One trooper fired multiple rounds into the vehicle. It was later determined that Gregory died from a self-inflicted gunshot.

Omar Magana was arrested after an alleged robbery spree and pre-booked into jail. While he was handcuffed to a bench, he began contorting his body and appeared to have a stroke. Two police officers accompanied by two EMTs took Magana to the hospital for a CT scan. After the scan, when officers attempted to put the cuffs back on, Magana violently resisted, and both officers struggled to hold his arms down. Magana attempted to rip one officer's gun from its holster. The other officer shot Magana 3 times, killing him. The officers were cleared of any criminal wrongdoing.

Temple officers went at about 3:38 a.m. to a disturbance in progress at an apartment and allegedly were fired on as they approached the apartment. They returned fire, fatally striking the shooter. An 11-year-old boy was wounded, although it wasn't immediately apparent who shot him.

During a standoff with police, Gary Wayne Lindsey Jr. shot an Orlando police officer and took four children hostage before killing the children—Dove Lindsey, 1, Aidan Lindsey, 6, Lillia Lopez, 10, and Irayan Lopez, 11—and then shooting and killing himself.

During a standoff with police, Gary Wayne Lindsey Jr. shot an Orlando police officer and took four children hostage before killing the children—Dove Lindsey, 1, Aidan Lindsey, 6, Lillia Lopez, 10, and Irayan Lopez, 11—and then shooting and killing himself.

During a standoff with police, Gary Wayne Lindsey Jr. shot an Orlando police officer and took four children hostage before killing the children—Dove Lindsey, 1, Aidan Lindsey, 6, Lillia Lopez, 10, and Irayan Lopez, 11—and then shooting and killing himself.

An estranged couple was transferring custody of their children, a 4-year-old girl and 7-year-old boy, in the lobby of the Whittier police headquarters at 6 p.m. The father pulled out a knife, abducted the mother, and forced her into a vehicle and drove to a residence. At that point, the mother was able to walk away from the vehicle, but the father returned a short time later and removed the girl from the car at knifepoint. Whittier police arrived and were concerned the girl was in danger, and they shot and killed the man.

Walton County deputies responded to a report of a man with a gun "exhibiting erratic behavior." Deputies and a family member entered the home, attempting to calm down Chavius Hollis. Hollis allegedly raised his gun and shot the family member, at which point one deputy fired shot and killed Hollis.

At approximately 7:12 p.m., uniformed patrol officers saw a person they believed to be in possession of a firearm. He ran away from the officers and into an alley. The officers chased him, and he allegedly produced a firearm and shot at the pursuing officers. The officers shot and killed Marqueese Alston.

Stephen Cogelia had been asked by his father to leave the residence. Cogelia had made threats that he would kill his father and other occupants of the home. The father went to the state police barracks to report the threats and obtain a temporary restraining order against his son. While the father was at the barracks, a relative called to report that Cogelia had returned to the Sunset Lake Road home and was making additional threats. Five troopers went upstairs to the second floor of the home, and after opening the door of a bedroom, encountered Cogelia who was armed with a hunting knife. He was shot and killed.

A man shot and killed himself inside a U-Haul pickup truck after one of his tires blew out following a multi-county chase.

Employees were inside the AutoZone when Dillan Shane Ezell walked in at about 2:15 p.m. and told them he had a gun and to call police. Police surrounded the building, and Ezell came out, raising the weapon. After several shots were fired by police, Ezell reached for the weapon, prompting officers to shoot a second time, killing him. The alleged weapon was a pellet gun.

David Arthur was wanted out of Scioto County on several charges. Deputies got a tip he was at a home. Two deputies approached, but they backed away from the home. They got a search warrant and called Franklin County to assist. Within a few hours, Arthur began firing through a window at police, who shot and killed him.

Deputies responded to a report of a suspicious vehicle with three people inside. There were two female passengers inside the vehicle, and one allegedly pulled a gun on a deputy, who shot and killed her.

Officers Jeremiah Beason, 37, Anthony Gariano, 24, Jordan Anderson, 32, Frank Rycraft, 42, Robert Stephenson,36; Joseph Aguilos, 31, and Craig McIntosh, 42, shot and killed Terrence White, whom police alleged was linked to at least five armed robberies. Police intercepted White in a vehicle and, as he allegedly drove in their general direction, they fired upon him.

Robert A. White, 34, and Timothy D. Mosley, 33, were killed in an officer-involved shooting. Details regarding what precipitated the killings were withheld by police. News reports said they were apparently fighting over a gun and a golf cart.

Police shot and killed a man outside a Safeway gas station just before 5 p.m. Police said the officers recognized the man, who they say was considered armed and dangerous. The officers then confronted the man and shot and killed him, although details as to what precipitated the killing were withheld.

Police shot Guillermo Perez who held a knife to a woman's throat at a Van Nuys homeless services center, killing Perez and the hostage, Elizabeth Tollison, 49.

Officers responded around 8:30 a.m. after receiving reports of a man walking around a neighborhood with a gun and pointing it at people. When officers arrived, they found Barney, who matched the description of the person with the gun. As officers approached him, he got into a black vehicle and fled. Officers found Barney in the area of 35th and Dunlap avenues, where he exited his vehicle and allegedly pointed a handgun at the officers, who shot and killed him.

Richard Rivera was shot and killed by police near a crowded Smiths while being pursued for questioning in a string of crimes.

Police shot Guillermo Perez who held a knife to a woman's throat at a Van Nuys homeless services center, killing Perez and the hostage, Elizabeth Tollison, 49.

Gunfire blasted through a celebrated community event in Trenton leaving one person dead and 22 injured, police said. The 24-hour Art All Night event was a celebration of local artists. The shooting erupted around 2:45 a.m. Police said the shooting did not appear to be a targeted incident but a gang-related dispute that eventually led to an exchange of gunfire with police. Tahaji Wells was shot and killed by police after allegedly exchanging fire with at least two other suspects.

Christopher Logan was wanted on charges of murder, felony child abuse, and being a felon in possession of a firearm. When police attempted to arrest him, a standoff began. He eventually shot and killed himself.

Jonathon Buckley was reportedly being sought for holding someone against their will. When police caught up with him, he allegedly shot at police and was shot and killed.

East Pittsburgh Police officer Michael Rosfeld shot and killed Antwon Rose as he ran from a traffic stop. Rosfeld was charged with criminal homicide.

Marshall McCall was wanted on charges of aggravated assault. He shot and killed himself when police caught up with him at his parents' home.

Deputy Randy Zilk shot and killed Jesse Wade Powell. A woman hiking in the area had heard a confrontation between a male and female, then heard gunshots and contacted police around 6:20 p.m. The fatal shooting occurred at 6:44 p.m. at a camp off Forest Service Road 4610. Police withheld details about the sequence of events that led up to the killing.

Around 11 p.m., two police officers driving in the area of the station encountered a person who appeared to be pointing a handgun at them. He was shot and killed. Upon closer inspection, police determined the handgun was actually a pellet or BB gun designed to look like a real gun.