List of Mass Shootings in the U.S. From 2010–2020 With the Most Casualties

• 2010 — The Hartford Beer Distributors Shooting (9 dead incl. perpetrator, 2 injured)

The Hartford Distributors shooting was a mass shooting that occurred on August 3, 2010, in Manchester, Connecticut. The location of the crime was a warehouse owned by Hartford Distributors, a beer distribution company. The gunman, former employee Omar Sheriff Thornton shot and killed eight male coworkers before turning the gun on himself.

• 2011 — The Safeway Supermarket Shooting (6 dead incl. perpetrator, 18 injured)

On January 8, 2011, gunman Jared Lee Loughner shot U.S. Representative Gabrielle Giffords and eighteen others during a constituent meeting held in a supermarket parking lot in Casas Adobes, Arizona. Six people died, including Federal District Court Chief Judge John Roll; Gabe Zimmerman, one of Giffords’ staffers; and a nine-year-old girl, Christina-Taylor Green.

• 2012 — The Century 16 Theater Shooting (12 dead, 70 injured)

On July 20, 2012, a mass shooting occurred inside a Century 16 Movie Theater in Aurora, Colorado, during a midnight screening of the film The Dark Knight Rises. Dressed in tactical clothing, James Eagan Holmes set off tear gas grenades and shot into the audience with multiple firearms. Twelve people were killed and seventy others were injured, 58 of them from gunfire. Holmes was arrested in his car outside the cinema minutes later. Earlier, he had rigged his apartment with homemade explosives and incendiary devices, which were defused by the Arapahoe County Sheriff’s Office Bomb Squad a day after the shooting.

• 2013 — The Washington Navy Yard Shooting (13 dead incl. perpetrator, 8 injured)

The Washington Navy Yard shooting occurred on September 16, 2013 when 34-year-old Aaron Alexisfatally shot 12 people and injured three others (from gunfire) in a mass shooting at the headquarters of the Naval Sea Systems Command (NAVSEA) inside the Washington Navy Yard in southeast Washington, D.C. Alexis was killed by police.2014 — The Isla Vista Killings (7 dead incl. perpetrator, 14 injured)

• 2014 — The Isla Vista Killings (7 dead incl. perpetrator, 14 injured)

On the evening of May 23, 2014, in Isla Vista, California, 22-year-old Elliot Rodger killed six people and injured fourteen others near the campus of University of California, Santa Barbara, before killing himself inside his vehicle.

Just before driving to the sorority house, Rodger uploaded to YouTube a video titled “Elliot Rodger’s Retribution”, in which he outlined details of his upcoming attack and his motives. He explained that he wanted to punish women for rejecting him, and punish sexually active men because he envied them. After uploading the video, Rodger e-mailed a lengthy autobiographical manuscript to some of his acquaintances, his therapist and several family members. The document, titled “My Twisted World: The Story of Elliot Rodger”, was made available on the Internet and became widely known as his manifesto. In it, he described his childhood, family conflicts, frustration over not being able to find a girlfriend, his hatred of women, his contempt for couples (especially interracial couples), and his plans for what he described as “retribution”.

• 2015 — The San Bernardino Shooting (16 dead incl. both perpetrators, 24 injured)

On December 2, 2015, 14 people were killed and 22 others were seriously injured in an Islamic terrorist attack consisting of a mass shooting and an attempted bombing at the Inland Regional Center in San Bernardino, California. The perpetrators, Syed Rizwan Farook and Tashfeen Malik, a married couple living in the city of Redlands, targeted a San Bernardo County Department of Public Health training event and Christmas party of about 80 employees in a rented banquet room.

• 2016 — The Pulse Nightclub Shooting (50 dead incl. perpetrator, 53 injured)

On June 12, 2016, 29-year-old Omar Mateen killed 49 people and wounded 53 others in a mass shooting inside Pulse, a gay nightclub in Orlando, Florida. Orlando police officers shot and killed him after a three-hour standoff. Pulse was hosting a “Latin Night,” and most of the victims were Hispanic. It is the deadliest incident in the history of violence against LGBT people in the United States and the deadliest terrorist attack in the U.S. since the September 11 attacks in 2001.

• 2017 — The Route 91 Harvest Festival Shooting (59 dead incl. perpetrator, 869 injured)

On the night of October 1, 2017, 64-year-old gunman Stephen Paddockopened fire on a crowd of concertgoers at the Route 91 Harvest Music Festival on the Las Vegas Strip in Nevada. He killed 58 people and wounded 413, with the ensuing panic bringing the injury total to 869. Paddock fired more than 1,100 rounds of ammunition from his suite on the 32nd floor of the Mandalay Bay Hotel. His motive remains officially undetermined and the incident is the deadliest mass shooting committed by an individual in the history of the United States.

• 2018 — The MSD High School Shooting (17 dead, 17 injured)

On February 14, 2018, 19-year-old Nikolas Cruz, a former student,opened fire with a semi-automatic rifle at Majory Stoneman Douglas High School in Parkland, Florida, killing 17 people and injuring 17 others. Cruz fled the scene on foot by blending with other students. He was arrested without incident about an hour later in nearby Coral Springs. He confessed to being the perpetrator, and he was charged with 17 counts of premeditated murder and 17 counts of attempted murder. Police and prosecutors have not offered a motive and are investigating “a pattern of disciplinary issues and unnerving behavior”.

• 2019 — The El Paso Shooting (22 dead, 24 injured)

On August 3, 2019, 21-year-old Patrick Crusius opened fire at a Walmart store in El Paso, Texas, killing 22 people and injuring a further 24. Crusius was arrested shortly after the shooting and charged with capital murder. Crusius left behind a manifesto with white nationalist and anti-immigrant themes, posted on the online message board 8chan shortly before the attack. The FBI is investigating the shooting as an act of domestic terrorism and a possible hate crime.