Ah..
Calm down you people. Most of you don't know his background, his motives. He probably didn't start shooting for a lousy reason. Not that I know anything about him, but the least thing you should call him is "crazy", "stupid" or "insane". No, don't judge that guy if you don't know him.
I have no oppinion, I don't really know what happened up there, I'm not american/not even english. (dutch).
I don't think it was the right thing to do though, I think there were better sollutions, but in this way he did get the attention he wanted, and the sort of "respect" he likes (mostly "disrespect", but in a different way). These people won't be easily stopped. We just have to live with it. For me, it's just an American school-shooting. I'm sorry if I said something wrong. I mean no offense.