No, it doesn't help for sure.
The reason I say psychopath is due to my personal experience with such people. It's true that psychopaths are not psychotic, they will not be overtly in frenzies all the time. They are cold and calculated. They are unafraid to break the law and it's true, they will more likely kill behind the scenes in a more covert fashion. Though there are psychopaths who kill outwardly and overtly to send a message out.
this is very true sadly but we are dealing with so many different issues here not a 1 dimensional problem and a 1 dimensional answer will not solve it