I grew up with someone who would later in life be diagnosed with schizophrenia. None of his close friends knew anything about his behavior problems until he started being sent to mental institutions (by his various "girlfriends", who most of the time we had never met). Even then, we didn't believe there was a real problem, because the behavior we witnessed wasn't abnormal to us.
One day, he came to me while he was having an episode. He was convinced that his mother was a demon and needed to be destroyed, and that I was the only God powerful enough to destroy him. He was taken to a mental hospital yet again, after an overnight at the county jail. We have very little contact with him now, and the last I knew, he was living on his own, outside of a mental institution, but taking his medications.
The short story is, some people need serious help with their mental problems, and their families and friends won't know when it's time to intervene. Constant supervision is an absolute necessity for some individuals. Its a really awful thing to think about locking up family or friends in a rubber room. Its by far worse to let them be free to harm themselves AND others... I most likely wouldn't hold this opinion if I hadn't been so close to someone who could be capable of the same destructive force that these other mentally ill shooters.
Its blatantly obvious to me that guns, religion, games, tv, music, etc... are not the issue. All it would take, would be for him to stop taking his medications out of his own free will, and this could all be happening again.
