Surveillance footage of the incident shows Roslyakov wearing black trousers and a white T-shirt emblazoned with the Russian word " НЕНАВИСТЬ " ( hatred ) as he carries an eight-shot 12 gauge Hatsan Escort Aimguard pump-action shotgun with a pistol grip . 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 " 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 "
Columbine High School massacre
Columbine High School massacre
Kerch Polytechnic College massacre