"Education is not the amount of information that is put into your brain and runs riot there, undigested all your life. We must have life-building, man-making and character-making assimilation of ideas.” said Swami Vivekananda.

Killers like Cho Seung-hui aren't made in heaven or hell. They are ordinary people who face ordinary social crisis like abandonment of girlfriends. In any college or society at large you will find some loners, introverts who cannot adjust themselves well with the scoiety after rebuffed by it at some stage in their life. Most often, given enough time, they will integrate again with society down the road. In their moment of serious crisis and mental anguish if you add to this potentially dangerous mix the easy availability of firearms then you are looking for trouble, serious trouble.