Columbine High School massacre Columbine High School massacre The Columbine High School massacre was a school shooting that occurred on April 20, 1999, at Columbine High School in Columbine, an unincorporated area of Jefferson County (Jeffco), Colorado, United States, near Littleton in the Denver metropolitan area. The perpetrators, twelfth grade (senior) students Eric Harris and Dylan Klebold, murdered 12 students and one teacher. Ten students were murdered in the library, where the pair subsequently committed suicide. At the time, it was the deadliest school shooting ever. The crime has inspired several copycats, and "Columbine" has become a euphemism for a school shooting. They injured
Columbine High School massacre departing Columbine for their lunch break observed Brown heading down South Pierce Street away from the school. Meanwhile, Harris and Klebold armed themselves, hiding weapons beneath black trench coats with straps and webbing, and carrying backpacks and duffel bags filled with pipe bombs and ammunition. Harris also had his shotgun in one of the bags. Beneath the trench coats, Harris wore a white T-shirt which read "Natural Selection" in black letters, as well as a homemade bandolier; Klebold wore a black T-shirt which read "Wrath" in red letters. They climbed to the top of the outdoor steps which led up