Here is what was stated about why Cho was not "Put away"
Officials said that despite the warning signs, there was nothing that could, or should have led them to put him in jail or commit him.
"Clearly if anyone had any warning about a violent incident, people would have stepped in and acted," said Christopher Flynn, director of Virginia Tech's Cook Counseling Center.
Although Cho's writings were disturbing, mental health professionals say the student's behavior didn't reach the threshold that would have demanded more aggressive intervention.
But Gregory Eells of Cornell University's health center points out that "a lot of the things that have been said about this young man are applicable to hundreds of thousands of college students, in terms of dark writings or violent writings, and even problematic behavior, even sometimes stalking behavior. That's more common than you would like to believe."
"You can't do anything unless there's imminent risk that's somewhat foreseeable to take away someone's civil rights. I mean, you can have them hospitalized if you, as a mental health professional, feel that that risk is there," said Eells, associate director for counseling and psychological services at Cornell's Gannett Health Services.
http://www.cnn.com/2007/US/04/19/student.counseling/index.html?eref=rss_topstories