Columbine High School massacre "Christianity is YOUR Columbine". In a self-made video recording sent to the news media by Seung-Hui Cho prior to his committing the Virginia Tech shootings, he referred to the Columbine massacre as an apparent motivation. In the recording, he wore a backwards baseball cap and referred to Harris and Klebold as "martyrs." Adam Lanza, the perpetrator of the Sandy Hook Elementary School shooting had "an obsession with mass murders, in particular the April 1999 shootings at Columbine High School in Colorado." The perpetrator of the Emsdetten school shooting praised Harris in his diary. In November 2007, Pekka-Eric Auvinen imitated Columbine
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