Sadly, sometimes people like that do even end up in prison for life. It actually happened to a guy right near my neighborhood. He had some severe mental disorders and was arrested for murder. I know the whole story since he did date my sons mom before me. Some girl he trusted manipulated him into thinking that this guy was going to kill another person he was close to. I hope I'm being completely accurate on the details but it's been a long time since I heard about it. If I remember correctly he went to confront the guy about it. At some point the guy punched him. Then he freaked out and goes "don't hit me!" Now considering he had these disorders he was not only feeling threatened but thought someone he was close to was threatened. I don't remember the exact number but I want to say he then ended up stabbing the guy over 40 times. It was also found out that the reason the girl said the guy was going to kill the person he was close to is because she knew what would probably happen and was getting a large amount of money if the guy died. As a result a guy the has a bunch of mental disorders goes to jail for life because a dumb bitch manipulated and took advantage of him.