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 people were killed in the Stoneman Douglas High School shooting. After the shooting, classes at Columbine were held at nearby Chatfield Senior High for the remaining three weeks of that school year. The school went through a major renovation in 1995, just four years before the massacre, adding a new library and cafeteria. After the shootings, Columbine completely demolished its library, located above the cafeteria, since it was the site where the majority of the deaths occurred. The site was then turned into a memorial ceiling and atrium; a new, larger library was built on the hill where the shooting