A school shooting and attempted bombing occurred on April 20, 1999, at Columbine High School in Columbine, Colorado, United States. The perpetrators, twelfth-grade students Eric Harris and Dylan Klebold, murdered twelve students and one teacher; ten were killed in the school library, where Harris and Klebold subsequently died by suicide. Twenty-one additional people were injured by gunshots, and gunfire was exchanged with the police. Another three people were injured trying to escape. The Columbine massacre was the deadliest mass shooting at a K-12 school in U.S. history until December 2012. It is still considered one of the most infamous massacres in the U.S. for inspiring many other school shootings and bombings; the word "Columbine" has since become a byword for modern school shootings. As of 2025, Columbine is still the deadliest school shooting in Colorado, the deadliest high school shooting in the United States to happen west of the Mississippi River, and one of the deadliest mass shootings in the United States.
Charles Raymond Starkweather was an American spree killer who murdered eleven people in Nebraska and Wyoming between November 1957 and January 1958, when he was nineteen years old. He killed ten of his victims between January 21 and January 29, 1958, the date of his arrest. During his spree in 1958, Starkweather was accompanied by his fourteen-year-old girlfriend, Caril Ann Fugate.
Events from the year 1975 in Canada.
Events from the year 1957 in Canada.
A thrill killing is premeditated or random murder that is motivated by the sheer excitement of the act. While there have been attempts to categorize multiple murders, such as identifying "thrill killing" as a type of "hedonistic mass killing", actual details of events frequently overlap category definitions making attempts at such distinctions problematic.
Paul John Knowles, also known as The Casanova Killer, was an American serial killer tied to the deaths of 18 people in 1974, although he claimed at least 35.
On December 26, 2000, a mass shooting took place at Edgewater Technology in Wakefield, Massachusetts, United States. Michael Morgan McDermott, an employee at Edgewater Technology, shot and killed seven of his coworkers. It is the deadliest workplace shooting in Massachusetts history.
Matricide is the act of killing one's own mother.
The San Ysidro McDonald's massacre was a mass murder, which occurred at a McDonald's restaurant in the San Ysidro neighborhood of San Diego, California, on July 18, 1984. The perpetrator, 41-year-old James Huberty, fatally shot 21 people and wounded 19 others before being killed by a police sniper approximately 77 minutes after he had first opened fire.
The Red Lake shootings was a spree killing that occurred on March 21, 2005, at two locations on the Red Lake Indian Reservation in Red Lake, Minnesota, United States. That afternoon at 2pm, 16-year-old Jeff Weise killed his grandfather and his grandfather's girlfriend at their trailer home. After taking his grandfather's police weapons and bulletproof vest, Weise drove his grandfather's police vehicle to Red Lake Senior High School, where he had been a student some months before.
St. Pius X High School is a secondary school in Ottawa, Ontario, Canada. Founded in 1958, the school, operated by the publicly funded Ottawa Catholic School Board, teaches grades 9-12. As of March, enrollment stood at around 833 students.
The Heath High School shooting occurred at Heath High School in West Paducah, Kentucky, on December 1, 1997, when 14-year-old Michael Carneal opened fire on a group of students, killing three and injuring six.
Haou Airen is a Japanese shōjo manga series created by Mayu Shinjo.
Kayla Renee Rolland was an American six-year-old girl from Mount Morris Township, Michigan, United States, who was fatally shot on February 29, 2000, by a six-year-old male classmate at Buell Elementary School in the Beecher Community School District. The boy had found the gun while living at his uncle's house; the house was a crack house where guns were frequently traded for drugs.
Death Weekend is a 1976 Canadian horror/thriller film. It stars Brenda Vaccaro and Don Stroud and was one of the first films from Canadian director William Fruet. The low-budget production was shot in rural Canada and at a studio in Kleinburg, Ontario, Canada.
Martin Peyerl was a German mass murderer who, on 1 November 1999, fired from his bedroom window, killing four people and wounding seven others before committing suicide.
The University of Texas tower shooting was an act of mass murder that occurred on August 1, 1966, at the University of Texas at Austin. The perpetrator, 25-year-old Marine veteran Charles Whitman, indiscriminately fired at members of the public, both within the Main Building tower and from the tower's observation deck. He shot and killed 15 people, including an unborn child, and injured 31 others before he was killed by two Austin Police Department officers approximately 96 minutes after first opening fire from the observation deck.
The Raurimu massacre was a mass shooting that took place in 1997 in Raurimu, New Zealand. Stephen Anderson killed six people and wounded four. The massacre was one of the five most deadly mass shootings in the country's history.
Island of Death, also known as Devils in Mykonos and A Craving For Lust, is a 1976 Greek exploitation film directed by Nico Mastorakis. It tells the story of a man and a woman, posing as newlyweds, who visit the Greek island of Mykonos and start a rampage of murder, killing anyone they believe to be sinful or perverted.
