Victor3: He doubled the casualties from Columbine in total people killed or injured, and he included a network of bombs as part of his act. That's a dramatic leap for these kooks in the US. In comparing the number of casualties and the method, this guy looks more like the Norway killer, who may have been an inspiration to this killer. The Norway killer first set a bomb that killed 8 or 9, then went on his shooting spree days later. In any case, it looks like these guys have become more calculating, more efficient, better equipped, and more deadly than previous rampage killers.