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 public rituals of humiliation." One author argues Columbine was only increasingly linked to terrorism after the September 11 attacks. On the Basement Tapes, Harris claimed they would "kick-start a revolution". Klebold wore a Soviet Union pin on his boots during the massacre. The attack occurred on April 20, Adolf Hitler's birthday, which led to speculation in the media that the attack was political. Some people, such as Robyn Anderson, stated that the pair were not obsessed with Nazism nor did they worship or admire Hitler in any way. Anderson stated, in retrospect, that there were many things the pair did