Are we living in ancient times here? It sounds like a lot of you want to use some of the more barbaric methods used in the past to treat Li. No daylight at all? Not even a 15 minute walk!? Maybe we should just try some shock treatment? Start removing parts of his brain perhaps?
Yes, what he did was horrifying, but he was clearly suffering from a completely out of control schizophrenic episode. That means he literally had no control over his actions, which is why he was found not criminally responsible.
Get the man, as well as Tim's family the treatment they need for them to move on with their lives in a positive way. While we're at it, get some treatment for the people who honestly believe that we should be torturing a mentally ill human being.
What if you couldn`t control you actions or had vivid thoughts/visions that made you act inappropriately?