Well, seems like he's been taken alive, so hopefully some information will come out. Not sure to make of the FB friend list. Was he really friends with all of those black folks - plenty of folks his age will have basically everyone in their HS on their friend list? Either way, black friends or no black friends, what the hell happened that drove him to do what he did? I agree that we need to figure out who and how - especially who (if there is a who).
I will say that for a person that age to have that few facebook friends is already a sign of a strange-o.