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 with a shooting in Jokela in Tuusula, Finland. He wore a shirt saying "Humanity is Overrated". The perpetrator of the Dawson College shooting wrote a note praising Harris and Klebold. The Tumblr fandom gained widespread media attention in February 2015 after three of its members conspired to commit a mass shooting at a Halifax mall on Valentine's Day. In 2017, two 15-year-old school boys from Northallerton, UK were charged with conspiracy to murder after becoming infatuated with the crime and "hero-worshipping" Harris and Klebold. Ralph Larkin wrote the Columbine massacre established a script for school shootings. Larkin examined twelve major