NY Times Lede Blog posted a quote from a guy who was in Cho’s drama writing class. He said the minute he heard about the tragedy he knew it was Cho. Apparently, the dude’s writing was so violent and his silence so creepy, students and professors were afraid to criticize his work during peer review. He also said he imagined that Cho was the school shooter type so far as to construct a plan in his head for what he would do when he showed up with gun.
Everybody knew this guy was a loony-tune, but there's really no legal process in place that could have been used to get him the hell out of the classroom.
Did his plan call for showing up with a gun of his own?
If this is all true, this University is responsible for not acting on ALL of those signs.