He 's a sociopath , but `` not crazy , '' a criminologist says . `` Mass murderers rarely are psychotic , '' another criminologist says . Experts disagree over whether he was primarily motivated by ideology or a desire for infamy . " I think the difference is that in this case it seems to be more of an ideological motivation than just wanting notoriety.
He 's a sociopath , but `` not crazy , '' a criminologist says . `` Mass murderers rarely are psychotic , '' another criminologist says . Experts disagree over whether he was primarily motivated by ideology or a desire for infamy . Some see comparisons to Unabomber , Virginia Tech shooter , Oklahoma City bomber .