 His clothing resembles that of Eric Harris, one of the perpetrators of the 1999 Columbine High School massacre, leading to speculation that the massacre was a copycat crime.According to some Russian tabloids, he had been a member of various Eric Harris and Dylan Klebold fanclubs on social networks, and had informed friends of his belief that "it would be good to have a massacre", specifically referencing Columbine High School massacre as an example.Furthermore, he had mentioned his belief in the two perpetrators being "awesome gone".