Yep, where was this guy's father? I suppose it's a lesson to parents everywhere - - if your son is a "homeless" psycho, please help him before he ends up dead in the street. Get him committed, put him in the basement or the garage, anything...
He had a room where he could sleep whenever he wanted. He would come in and sleep in a car instead of a room because he was a ‘free spirit’. He did not want to be helped, and it is difficult if not impossible to commit someone against their will.
Once a person is an adult in age, it’s very hard to gain any control of them. You can do the 72-hour thing, but after that, unless they are obviously suicidal, murderous or voluntary agree to help ... nothing can be done.