See link in header above for a terrific post from Nick of the North on bullying.
And it appears that all these massacres are about bullying and the resulting isolation. As a victim myself, I recall feeling those murderous thoughts, feeling the isolation and slashing my own wrist at fourteen as the fear of facing my tormentors would overcome me and my pleading for another sick day at home fell on deaf years.
We need to understand the Chos of the USA to get a handle on how each and every citizen is responsible for this abhorrent and sickening catastrophe, from the happy gun-peddlars to the disdain of his co-students who laughed at his accent and told him to go back to China - a country he had never been to, incidentally. And all this in front of the teacher who condoned the abusive behaviour by not speaking up.
How isolated and lonely was this young man? We cannot even imagine his state of mind.
And here are the words of another troubled young man whose rage also built up into a murderous crescendo.
Luke Woodham, the high school killer in Pearl, Miss., whose murder spree preceded Carneal's by two months, was even more explicit in his rebellion. Minutes before starting his schoolyard rampage, Woodham handed his manifesto to a friend, along with a will. "I am not insane," he wrote. "I am angry. I killed because people like me are mistreated every day. I did this to show society, push us and we will push back. ... All throughout my life, I was ridiculed, always beaten, always hated. Can you, society, truly blame me for what I do? Yes, you will. ... It was not a cry for attention, it was not a cry for help. It was a scream in sheer agony saying that if you can't pry your eyes open, if I can't do it through pacifism, if I can't show you through the displaying of intelligence, then I will do it with a bullet."
But I expect the same lack of self-examination as from 9/11 - a true opportunity is presented to understand and reflect and will be ignored by an increasingly aggressive and isolationist culture.
In the very near future, I can foresee universities being re-invented as armed camps with the only true beneficiary being the giant military industrial complex which includes the Glock/AK 47 et al manufacturers.
We are all barking mad.