Question Mark

As more and more is known about Cho Seung-Hui, the student gunman who mowed down 32 of his fellow students and professors, more and more of us allow ourselves to feel some sort of relief, as this event becomes less and less of a mystery:
He was a loner. He had been taking medication for depression and was becoming increasingly violent and erratic. He wrote bizarre and violent screenplays that featured fights resolved through the throwing of hammers and attacks with a chainsaw. He was South Korean, a foreigner implanted in American land who never quite felt at home. In his backpack, an 8 page rant against rich kids and religion. On the sign-in sheet where everyone else had written their names, Cho had written a question mark. "Is your name, Question mark?" the professor asked him. Cho did not respond.
He is no longer a question mark, but an exclamation point.
(with quotes from AP)