Colorado has been the scene of a number of multiple fatal shootings in recent years, including these that made national headlines:
May 7, 2019 — Two students enter a charter school in Highlands Ranch, a Denver suburb near Littleton, and fire at fellow students in two locations. A student who tackles one of the gunmen is fatally shot, and eight others are wounded by gunfire. The two assailants are captured.
Dec. 31, 2017 — A sheriff’s deputy who barricaded himself in an apartment in Highlands Ranch engages in a gun battle with police officers responding to reports of a disturbance. One officer is killed and four are wounded before the police kill the gunman. Two civilians are wounded.
Nov. 27, 2015 — A man armed with an assault-style rifle enters a Planned Parenthood clinic in Colorado Springs and opens fire, killing two civilians and a police officer who confronts him; nine other people are wounded in a 5-hour siege before the gunman surrenders.
Oct. 31, 2015 — A man carrying a semiautomatic rifle shoots and kills three people, apparently at random, on a residential street near downtown Colorado Springs, and then is confronted and shot dead by police officers.
July 20, 2012 — A man walks to the front of a crowded movie theater in Aurora during a midnight screening of a Batman film, sets off tear gas grenades and opens fire on the audience, killing 12 people and wounding 58 with gunfire. Another 12 are injured in the ensuing panic. The gunman is arrested in the theater parking lot.
April 20, 1999 — Two students storm into Columbine High School in Littleton, fatally shooting a teacher and 12 fellow students, and then kill themselves.