This is like
this guy. He shoved a commuter in front of a train at Mile End station in London after riding the underground for hours because the voices in his head told him to.
Although this guy was different (he actually tried to get admitted into a mental hospital, saying "If I'm not admitted soon, I'm going end up pushing someone under a bus or train or something."), people like this should be dealt with. Now, I'm not saying they should be killed or whatever. In my opinion, they should be put where they belong, in mental hospitals. Anywhere else, they can be a threat to anyone around them.