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 friend Dylan Klebold and others. The mascot of Columbine High School (CHS) is the Rebels, and he called these "Rebel Missions". Harris and Klebold adopted the nicknames "Reb" and "Vodka" respectively. Beginning in early 1997, the blog postings began to show the first signs of Harris's ever-growing anger against society. By the end of the year, the site contained instructions on how to make explosives. Harris wrote "the first true pipe bombs created entirely from scratch by the rebels (REB and VoDkA)...Now our only problem is to find the place that will be 'ground zero.'" Harris's site attracted few visitors,