You, I'm sure, will find whatever simplistic explanation that fits your worldview
Nobody kills 30 people because he is greedy or jealous, however.I know many greedy and jealous people of all socioeconmic classes (actually, more richer than poorer) who never picked up a weapon and went on a killing spree. I'm sure the point is lost on you, but almost every Sociopathic nut in history has some ascribed 'rationale' to justify his crimes. Its not that contrivance that is relevant, its what lies beneath.
Yeti
