Crimes involving police impersonation

Robert Eugene Brashers was an American serial killer who committed at least eight murders in Kentucky, Missouri, South Carolina and Texas between 1990 and 1998. During his lifetime, Brashers was convicted of attempted murder for shooting a woman in 1985, as well as for various other offenses stemming from a 1992 case in which he stole a vehicle, but was not identified as a suspect in any of his murders and remained in relative obscurity. He died by a self-inflicted gunshot wound in 1999 to avoid arrest for an unrelated crime after a standoff with police.

two sequential lone wolf terrorist attacks in Norway on 22 July 2011

series of shootings in Nova Scotia, Canada

In the early morning of June 14, 2025, Minnesota state representative Melissa Hortman was assassinated at her home in Brooklyn Park, Minnesota, United States. Hortman, the leader of the state House Democratic caucus, was shot and killed alongside her husband, Mark. Less than two hours earlier, state senator John Hoffman and his wife, Yvette, were shot and seriously injured at their home in nearby Champlin and hospitalized. Police responding to the attack on the Hoffmans checked on the Hortmans' home, where a man fired at them. The shooter escaped, sparking the most extensive manhunt in Minnesota history.

September 2001 shooting in Zug, Switzerland