Whatever faculty member read this should've shot him!
Now that they're finding out about the gutless wonder, they're harpin' on how he was friendless, quiet, a loner, yada-yada-yada. Maybe they're attempting to show how someone should've noticed something and intervened, but I've known countless such people, and they never went on a rampage. The guy was just a depraved little bastard, that's all...no excuses, sorry.