There's been some research into "selective" empathy for sociopaths. There was some scientific study involving sociopaths interacting and having empathy for animals. I read about it in one of M.E.'s old blog posts, I think.
Someone here (Demon maybe) showed me this video
The dude acting like a psycho has a youtube channel https://www.youtube.com/user/skaterboy1160708
I watched a few of his vids, he seems genuinely disturbed. He just goes around on that game and kills and kidnaps other characters, sometimes alone sometimes with a group of guys he treats like shit and they do whatever he wants. He obviously gets a great kick out of it and it comes naturally to him to act and think like a psycho.
How about we contact him and bring him over?