Jared Lee Loughner is an American mass murderer who pled guilty to 19 charges of murder and attempted murder in connection with the January 8, 2011, Tucson shooting, in which he shot and severely injured U.S. Representative Gabby Giffords, and killed six people, including Chief U.S. District Court Judge John Roll, Gabe Zimmerman, a member of Giffords' staff, and a 9-year-old girl, Christina-Taylor Green. Loughner shot and injured a total of 13 people, including one man who was injured while subduing him.
On February 27, 2012, six students were shot at Chardon High School in Chardon, Ohio, resulting in the deaths of three of them. Witnesses said that the shooter had a personal rivalry with one of his victims. Two other wounded students were also hospitalized, one of whom sustained several serious injuries that have resulted in permanent paralysis. The fifth student suffered a minor injury, and the sixth a superficial wound.
Oikos University is a private Korean Christian university in Oakland, California. The university is accredited by the Transnational Association of Christian Colleges and Schools (TRACS).
James Eagan Holmes is an American mass murderer responsible for the 2012 Aurora, Colorado shooting in which he killed 12 people and injured 70 others at a Century 16 movie theater on July 20, 2012. He had no known criminal background before the shooting occurred. Before the shooting, Holmes booby-trapped his apartment with explosives, which were defused one day later by a bomb squad.
On November 27, 2015, a mass shooting occurred in a Planned Parenthood clinic in Colorado Springs, Colorado, resulting in the deaths of three people and injuries to nine. A police officer and two civilians were killed; five police officers and four civilians were injured. After a standoff that lasted five hours, police SWAT teams crashed armored vehicles into the lobby and the attacker surrendered.
On June 1, 2016, two men were killed in a murder-suicide at a School of Engineering building on the campus of University of California, Los Angeles (UCLA). The gunman was identified as Mainak Sarkar, an Indian-born 38-year-old former UCLA Ph.D student. The victim was William Scott Klug, a professor who was Sarkar's thesis advisor while Sarkar was a student at UCLA. A woman, later identified as Sarkar's estranged wife, was found dead in Minnesota during the subsequent investigation into the shooting, and is suspected to have been killed by Sarkar several days before the UCLA shooting.
On September 23, 2016, a mass shooting occurred at Cascade Mall in Burlington, Washington, U.S. Five people were killed in the incident. The gunman was identified as Arcan Cetin, a 20-year-old who emigrated from Turkey as a child with his family. He was arrested the following day in Oak Harbor, Washington, his hometown. On September 26, he confessed to committing the shooting. On April 16, 2017, Cetin committed suicide by hanging himself in his jail cell.
The Townville Elementary School shooting occurred on September 28, 2016, in Townville, South Carolina, located 40 miles (64 km) southwest of Greenville. Fourteen-year-old Jesse Osborne shot three students and a teacher, critically wounding six-year-old student Jacob Hall, who died from his injuries three days later. Osborne, who also shot and killed his father before the shooting, was arrested as the sole suspect and charged with murder and attempted murder.
On January 6, 2017, a mass shooting occurred at Fort Lauderdale–Hollywood International Airport in Broward County, Florida, United States, near the baggage claim in Terminal 2. Five people were killed while six others were injured in the shooting. About 36 people sustained injuries in the ensuing panic. Esteban Santiago-Ruiz, who flew in to the airport from Alaska and committed the shooting with a Walther PPS 9mm semi-automatic pistol, was taken into custody by a Broward County Sheriff's Office (BSO) deputy within 85 seconds after he started shooting. The shooting from start to finish lasted 70–80 seconds. Santiago was later diagnosed with schizophrenia and pleaded guilty to avoid possible execution. On August 17, 2018, Santiago was sentenced to five consecutive life sentences plus 120 years in prison.
The Quebec City mosque shooting was an attack by a single gunman on the evening of January 29, 2017, at the Islamic Cultural Centre of Quebec City, a mosque in the Sainte-Foy neighbourhood of Quebec City, Canada. Six worshippers were killed and five others seriously injured after evening prayers when the gunman entered the prayer hall shortly before 8:00 pm and opened fire for about two minutes with a 9mm Glock pistol. Approximately 40 people were reported present at the time of the shooting.
On August 28, 2017, a mass shooting occurred at the Clovis-Carver Library, a public library in downtown Clovis, New Mexico, U.S. The gunman fatally shot two people and injured four others. He was identified as Nathaniel Jouett, a 16-year-old student at nearby Clovis High School.
On November 1, 2017, a shooting occurred at a Walmart Supercenter in Thornton, a suburb of Denver, Colorado. It was reported to have begun at 6:10 p.m. MT, resulting in three people killed. There was a nationwide manhunt for suspect Scott Allen Ostrem, 47.
The Marshall County High School shooting occurred at Marshall County High School near Benton, Kentucky, on January 23, 2018. The gunman, 15-year-old student Gabe Parker, opened fire in an open area at the school, murdering two students and injuring 14 others.
On 4 June 2019, a mass shooting occurred in Darwin, Northern Territory, Australia. The Northern Territory Police confirmed that four people were killed in the incident and another one was injured. A 45-year-old man, Benjamin Glenn Hoffmann, was arrested and subsequently convicted for murder and manslaughter.
In late May and early June 2020, two ambush-style attacks occurred against security personnel and law enforcement officers in California. The attacks left two dead and injured three others.
On November 30, 2021, a mass shooting occurred at Oxford High School in the Detroit exurb of Oxford Township, Michigan, United States. 15-year old Ethan Crumbley, armed with a 9 mm semi-automatic handgun, murdered four students and injured seven people, including a teacher. Authorities arrested and charged Crumbley as an adult for 24 crimes, including murder and terrorism. Crumbley pleaded guilty to all of the charges in October 2022.
