One man; One issue, One concern?

Not to say who exactly. But, i know a person, im concerned, this person loves the things that are not really as human as you would believe. The thing is, this person is actually on the outside, a good looking person, like he inhabits good loving qualities, but who is he truly doesn't, becuase on the inside, sometimes when i am with him, and when bad things happen, such as blood falling out of a little girls neck as she curdles on the floor, or as a person gets hit by a car, he gets a weird, weird, weird thrive off of it. Even in violence. I swear, i never felt nothing like it before, why is my question. It seemes like he's more pumped and more happier in violence than in a regular socail life, why is that is my question? What kind of a person is this. While i warn you, urge you and remind you to not think of who this person may be, im just expecting you to tell me in details on what kind of person you think this person is. But something isn't right. Everytime we would watch a movie, or get into a real life situation in which both had to involve with a real accident involving blood and the whole enterouge, its like he just gulped up a botttle of alchohol. Once he told me, looked at me, and said, ellectrified after seeing a real life accident in violence, "it makes him feel alive, feel like everything that was funny once, is not now, everything that was this or that, is not now." He said that, "it is the one thing that everyone reacts to no matter who you are. When somone gets killed, everyone looks at it in surprise, like it is real serious. This is when the feeling like no other arouses. it lets you know whose got the real power, whose really in charge; it feels like praising to the lord." I repeat, i will not mention who this person is. I just would like to know what everyone thinks about him. I'm concerned about him. And for all i know, as long as i knew him, he's been the only child, the type of boy who doesn't quite show much of himself in public eyes, at least not in good intentions. I just wanted to see if the world sees what i sees. Any Comments?