It's okay to be sad. The people who made those comments were probably as shocked as you were deep inside, but wanted to seem "cool" to their friends. I think that's just part of being an adolescent guy, sometimes. Everyone copes in his or her own way.

I am truly sorry for your loss - not just of the boy you know, but the loss of a part of yourself. Mortality really hits home when someone your own age is suddenly dead, and I'm sorry.

You'll be in my prayers tonight.