>>41374874
He kills the bum because he is doing something I call emotion hunting. Slaying the hobo makes him fearful of being caught and satisfied and thankful of being in a higher societal standing.
Narcissist hunt for emotions because their brain eventually filters those emotions away. It gets worse and worse until they can only get emotional by killing someone for example. He doesn't kill the hobo because there's nothing wrong with that. He kills the hobo because he does feel there is something wrong with that.
Emotions feels good, man. Everything becomes kind of pointless without them.