What to do with a student who hates the world.

I finally went back to work today. This was a prearranged sub assignment for a special ed teacher at the high school I do most of my teaching at. I was all over the building working with these kids. By the time I finished the day, I was in 4 different rooms. This teacher is a rover, who pushes a cart full of supplies all over the building from room to room. Overall, I had a good day. As I've said before, I like working with these kids. Most of them are pretty motivated, and fun to be around. One boy, however, doesn't really like me. This goes back two years. From what I hear though, he doesn't like anybody. He is a "goth" kid who makes it a point to let everyone know how much he hates school, teachers, other students, and the world in general. I just kinda rolled with him and made it a point not to let him aggitate the other students. It's not as bad as I make it sound. He wasn't disruptive or angry, he just doesn't care. It's really sad, and I hope he someday comes out of this for his and his loved ones sanity. That's the think though, does he even have anyone who loves him? I really wonder. Does he have a parent who expresses any kind of affection, or show an confidence in him. My guess is no. At this point, he makes it so hard to care for him, but this has been coming on for years. I'm speculating he comes from a very disfunctional and uncaring family. He's probably never really been loved. It's a sad state, and I honestly don't hold much hope for this young man. I wish I could, but I really think it's too late for him. I hope I'm wrong.