Eric Harris and Dylan Klebold Eric Harris and Dylan Klebold Eric David Harris (April 9, 1981 – April 20, 1999) and Dylan Bennet Klebold (; September 11, 1981 – April 20, 1999) were two American mass murderers who killed 13 people and wounded 24 others armed with firearms, explosives and knives on April 20, 1999, at Columbine High School in Columbine, Colorado. They were twelfth grade (senior) students at the high school. The shooting rampage came to be known as the Columbine High School massacre. Harris and Klebold committed suicide in the library, where they had killed 10 of their victims. Harris was born in
Columbine High School addition of the new HOPE Columbine Memorial Library and a memorial on the site. Columbine High School was the site of one of the deadliest mass shootings in modern United States history. The shootings occurred on April 20, 1999, when senior students Eric Harris and Dylan Klebold killed twelve students and a teacher, and wounded 24 others, before they both committed suicide. The massacre made headlines both nationally and internationally, making Columbine a household name, and causing a moral panic in U.S. high schools. It was the deadliest high school shooting in U.S. history until February 14, 2018, when 17