The Dunblane massacre took place at Dunblane Primary School in Dunblane, near Stirling, Scotland, on 13 March 1996, when 43-year-old Thomas Hamilton killed 16 pupils and one teacher and injured 15 others before killing himself. It remains the deadliest mass shooting in British history.
Going postal is an American English slang phrase referring to becoming extremely and uncontrollably angry, often to the point of violence, and usually in a workplace environment. The expression derives from a series of incidents from 1986 onward in which United States Postal Service (USPS) workers shot and killed managers, fellow workers, police officers and members of the general public in acts of mass murder. Between 1970 and 1997, more than 40 people were killed by then-current or former employees in at least 20 incidents of workplace rage. Between 1986 and 2011, workplace shootings happened roughly twice per year, with an average of 1.18 people killed per year.
The San Diego State University shooting was a school shooting that occurred at the San Diego State University (SDSU) engineering building on August 15, 1996, in San Diego, California. Three professors were killed by master's degree student Frederick Martin Davidson. Three months later, a copycat threat flier was sent, with threats against professors and racial insults.
The Lockheed Martin shooting occurred on July 8, 2003, at a plant in Meridian, Mississippi. The gunman, Douglas Williams, an assembly line worker at the plant, shot 14 of his co-workers with a shotgun, killing six of them, before committing suicide. After the shooting, information surfaced depicting Williams' history of making threats and racist comments directed at African-American coworkers. Five of the six killed in the incident were black.
The Edmond post office shooting was a mass shooting that occurred in Edmond, Oklahoma, on August 20, 1986. In less than fifteen minutes, 44 year-old postal worker Patrick Sherrill pursued and shot several coworkers, killing 14 and injuring another six, before committing suicide. It is currently the deadliest workplace shooting in U.S. history, as well as the deadliest shooting by a lone gunman in the state of Oklahoma.
A mass shooting occurred at an ABB power plant in St Louis, Missouri, on January 7, 2010. An ABB Power employee, armed with multiple firearms, killed three and injured five others and killed himself before police arrived.
The Hartford Distributors shooting was a mass shooting that occurred on August 3, 2010, in Manchester, Connecticut, United States. 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 a gun on himself.
Crime rates in Connecticut are lower than in the United States as a whole and have fallen significantly over the past decade, according to the 2021 Crime in Connecticut Report. This pattern holds true overall, and for most types of crime.
A mass shooting occurred at a firm in Minneapolis, Minnesota, United States, on the afternoon of September 27, 2012. The attack took place inside Accent Signage Systems, where a former employee walked into the firm's building and fired a Glock 19 pistol. By the end of the day, five people were dead, including the gunman who committed suicide, and four others were injured, three of them critically. One of those critically injured died the following day, and another man succumbed to his wounds on October 10. It was the deadliest workplace shooting in Minnesota's history.
The 1992 Tatarstan shooting was a mass murder which occurred in Tatarstan, Russia, on 26 April 1992. The perpetrator, Andrey Shpagonov, shot and killed 9 people and seriously injured another during a robbery attempting to steal firearms from his former workplace with the State Courier Service. Shpagonov and his accomplice, Dmitri Kovalev, were arrested and sentenced to death and 15 years imprisonment, respectively. On 11 November 1995, Shpagonov was executed by shooting.
On December 14, 1993, four employees were shot and killed, and a fifth employee was seriously injured at a Chuck E. Cheese's restaurant in Aurora, Colorado, United States. The perpetrator, 19-year-old Nathan Dunlap, a former employee of the restaurant, was frustrated about being fired five months prior to the shooting and sought revenge by committing the attack. He fled the scene of the shooting with stolen money and restaurant items. At the time, the Chuck E. Cheese Massacre was the deadliest mass shooting in Colorado, being surpassed by the Columbine High School massacre in 1999.
A shooting occurred on October 1, 2015, at the Umpqua Community College campus near Roseburg, Oregon, United States. Chris Harper-Mercer, a 26-year-old student who was enrolled at the school, fatally shot an assistant professor and eight students in a classroom, and injured eight others. Roseburg police detectives responded to the incident and engaged Harper-Mercer in a brief shootout. After being wounded, he committed suicide by shooting himself in the head. The mass shooting is the deadliest in Oregon's modern history.
On June 5, 2017, John Robert Neumann Jr., a 45-year-old former employee of Fiamma, killed five former colleagues inside a FIamma Inc. location in Orlando, Florida, before killing himself. Orange County Mayor Jerry Demings said Neumann did not appear to belong to any kind of subversive or terrorist group, and that he appeared to be a "disgruntled employee".
On June 14, 2017, 38-year-old Jimmy Lam fatally shot three coworkers at a United Parcel Service (UPS) facility in the Potrero Hill neighborhood of San Francisco, California, United States. Lam then shot and killed himself as police arrived at the facility. Two others were wounded by gunfire, and three people were injured while escaping.
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 January 23, 2019, at around 12:30 pm, five women – four employees and a customer – were shot and killed at the SunTrust Bank in Sebring, Florida. Zephen Xaver, aged 21, surrendered and was arrested at the scene by police after a standoff and the deployment of a SWAT team. He initially pleaded not guilty to five murders. On March 14, 2023, he pleaded guilty in the shooting.
On February 15, 2019, a mass shooting took place at Henry Pratt Company in Aurora, Illinois, United States. Six people died, including the perpetrator, 45-year-old former employee Gary Montez Martin, who was shot and killed by responding police officers. Six others were injured, including five police officers.
On June 15, 2012, 21-year-old security guard Travis Baumgartner, an employee of G4S Cash Solutions, shot four of his coworkers, three fatally, in the HUB Mall building on the campus of University of Alberta in Edmonton, Alberta, Canada. He stole his employer's armored truck and money, and gave the cash or left it at the homes of his mother and two friends. Baumgartner was arrested the next day in British Columbia, as he made plans to cross the U.S. border.
On May 26, 2021, a mass shooting occurred at a Santa Clara Valley Transportation Authority (VTA) rail yard in San Jose, California, United States. A 57-year-old VTA employee, Samuel James Cassidy, shot and killed nine VTA employees before committing suicide. It is the deadliest mass shooting in the history of the San Francisco Bay Area.
On November 22, 2022, Andre Marcus Bing killed six co-workers and injured four others before killing himself, in retaliation for perceived workplace harassment at the Walmart Supercenter where he worked as a night-supervisor in Chesapeake, Virginia, United States. Bing's suicide note cited concern he was being "led by Satan" and asking forgiveness – while also mentioning cancer treatments and loneliness.
