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 (book) tenth anniversary of the massacre, which occurred on April 20, 1999. The book spent eight weeks on "The New York Times" bestseller list in the spring of 2009, peaking at #3. The book gained considerable media attention for addressing many of the so-called Columbine myths widely taken for granted. According to the book, the massacre had nothing to do with school bullying, jocks, the Gothic subculture, Marilyn Manson or the Trench Coat Mafia. Cullen also writes that the attack was intended primarily as a bombing rather than a school shooting, and that Harris and Klebold intended to perpetrate the worst