I KNOW WHERE GONNA HAVE FOLLOWERS BECAUSE WERE SO FUCKING GODLIKE - Dylan Klebold
As of october, 2015 there has been 74 copycat cases of columbine, 53 of those, plots or threats twarted by law enforcement and 21 actual attacks.
13 cases involved plotters who hoped to surpass the casualties of columbine. Plotters in at least 10 cases cited Eric & Dylan as martyrs, gods and heros.
3 plotters took trips to columbine while planning attacks.
53% of cases involved guns, 18% involved bombs or explosives and 14% involved knives.
Their average age was 17
The overall toll is 89 killed, 126 wounded and 9 shooter suicides.
Information via (motherjones.com)