James Riddle Hoffa was an American labor union leader who served as the president of the International Brotherhood of Teamsters (IBT) from 1957 until 1971.

The Waco siege, also known as the Waco massacre, was the law enforcement siege of the compound that belonged to the religious sect Branch Davidians. It was carried out by the U.S. federal government, Texas state law enforcement, and the U.S. military, between February 28 and April 19, 1993. The Branch Davidians were led by David Koresh and were headquartered at Mount Carmel Center ranch in the community of Axtell, Texas, 13 miles (21 kilometers) northeast of Waco. Suspecting the group of stockpiling illegal weapons, the Bureau of Alcohol, Tobacco, and Firearms (ATF) obtained a search warrant for the compound and arrest warrants for Koresh, as well as a select few of the group's members.

Daniel Remeta led James Hunter and Lisa Dunn on a crime spree in 1985 in Kansas, Arkansas, and Florida that left five people dead. Three more were wounded.

Gary Mark Gilmore was an American serial killer who gained international attention for demanding the implementation of his death sentence for two murders he had admitted to committing in Utah.

Sylvia Wynanda Seegrist is an American woman who opened fire on October 30, 1985, at a shopping mall in Springfield, Pennsylvania, a suburb of Philadelphia. Seegrist killed three people and wounded seven others before being disarmed by a man who was shopping at the mall.

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.

Herbert Richard Baumeister was an American businessman and a suspected serial killer. A resident of the Indianapolis suburb of Westfield, Indiana, Baumeister was under investigation for murdering over a dozen men in the early 1990s, most of whom were last seen at gay bars. Police found the remains of eleven people, eight identified, on Baumeister's property. Baumeister committed suicide after a warrant was issued for his arrest. He was later linked to a series of murders of at least nine men along Interstate 70, which occurred in the early to mid-1980s.

Issei Sagawa, also known as Pang or The Kobe Cannibal, is a Japanese murderer, cannibal, and necrophile known for the killing of Renée Hartevelt in Paris in 1981.

Friedrich Heinrich Karl "Fritz" Haarmann (25 October 1879 – 15 April 1925) was a German serial killer, known as the Butcher of Hanover, the Vampire of Hanover and the Wolf Man, who committed the murder, mutilation, and dismemberment of at least 24 boys and young men between 1918 and 1924 in Hanover, Germany.

Levi Bellfield is an English serial killer. He was found guilty on 25 February 2008 of the murders of Marsha McDonnell and Amélie Delagrange and the attempted murder of Kate Sheedy, and sentenced to life imprisonment. On 23 June 2011, Bellfield was further found guilty of the murder of Milly Dowler.