VT Tragedy

It is all in the news the virginia Tech shooting. It was a shock to me.
What I dont get is how after shooting two people the school was not put on a Code red:lockdown.
Code red is when nobody is allowed in or out a class until all is clear. When someone you suspect is having problem or mentally unstable get them help. People through out the school knew he was not all their.
He should have been forced to go to councling or to leave the school.

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