Uhh, what are you guys talking about? Are you somehow denying the existence of evil in this world? In your minds, everybody is basically good and this massacre was just another unexplainable day in the life of us hapless human beings? Strange natural influences in the environment just happened to coincide perfectly and influence a wonderful young man to become a psychopath? Cho has no blame to share here? Also, he had no mental issues skewing his decision making process?

Don't make me laugh. All people obviously have evil tendencies and, out of giving Cho the benefit of the doubt, I'd like to at least hope he had mental damage affecting him as well. Get out of your fairy princess lands and be honest with yourselves. I had a tough time in adolescence and for a while there I barely even had one friend. I know what it's like to be rejected and I know what its like to regard other people as inferior to myself in extreme ways. I have no greater sympathy for Cho's behavior than I have for any violent thoughts I may have entertained about people who mistreated me.

There are so many people today who like to blame everything else in this world but our own personal choices. Bah.