The Depressive and the Psychopath – At last we know why the Columbine killers did it, by Dave Cullen, doesn’t really explain why they did it, but it does shed some light on their plan (which went awry):
The killers, in fact, laughed at petty school shooters. They bragged about dwarfing the carnage of the Oklahoma City bombing and originally scheduled their bloody performance for its anniversary. Klebold boasted on video about inflicting “the most deaths in U.S. history.” Columbine was intended not primarily as a shooting at all, but as a bombing on a massive scale. If they hadn’t been so bad at wiring the timers, the propane bombs they set in the cafeteria would have wiped out 600 people. After those bombs went off, they planned to gun down fleeing survivors. An explosive third act would follow, when their cars, packed with still more bombs, would rip through still more crowds, presumably of survivors, rescue workers, and reporters. The climax would be captured on live television. It wasn’t just “fame” they were after — Agent Fuselier bristles at that trivializing term — they were gunning for devastating infamy on the historical scale of an Attila the Hun. Their vision was to create a nightmare so devastating and apocalyptic that the entire world would shudder at their power.
By labeling Harris a psychopath, Cullen claims to explain his actions. I explain his behavior by labeling him a mass-murderer.