he is a mass murderer who kills under the guise of being an assassin for hire, however he never takes money, also those who hire him are typically either dead or ruined for life, the police cant really do much about him because of the way he kills people, he uses mind control to kill his targets or get them to kill themselves, as for why i view this as evil it is because i am unable to see his motivation for this, he kills people one after another like its just a game to him