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 massacre the video seemed a kind of dress rehearsal, showing them walking the halls of the school, and shooting bullies outside with fake guns. On October 21, 2003, a video was released showing the pair doing target practice on March 6, 1999, in nearby foothills known as Rampart Range, with the weapons they would use in the massacre. Also shooting with them is Mark Manes and Phil Duran, older men who helped supply one of the guns, and Manes's girlfriend. Harris and Klebold also kept five video tapes shot with school video equipment that documented their weapons, as well as their