Shooting in Colorado

I just read the article about the students taken hostage (and the subsequent death of one of them) in Colorado. How horrible. The Columbine shooting happened when I was in high school, and I just remember the impression it left on me. I was most disturbed at the reaction at my school, this ridiculous "that would never happen here" kind of attitude that only frustrated me. We have witnessed school violence around the world, from the incident in Canada a few weeks ago to some problems in Europe in recent years. All of this just makes me wonder if we are just prone to violence. I think incidents like these hurt so much because of the loss of such young and promising lives, and the thought of the scars the survivors will carry. So sad. Things like this just don't leave your heart or your head alone.