As experts in forensic psy­chi­atry try to figure out from afar what is wrong with James Holmes, they are focusing on three details of the shooting: The tar­gets were strangers to the killer, not col­leagues or acquain­tances; the shooter did not commit sui­cide or invite his own death at the hands of police; and Holmes warned author­i­ties about his booby-​​trapped apart­ment before the explo­sives he rigged killed anyone.

Most mass mur­derers kill spe­cific people for spe­cific rea­sons,” said crim­i­nol­o­gist James Alan Fox of North­eastern Uni­ver­sity, who with col­league Jack Levin has studied every mass murder in the United States since the early 1980s. “They kill the bosses who fired them, the pro­fes­sors who wronged them. These are revenge killings.”

Read the article at Reuters →