Well, my friend that I haven't known too long has a lot of mental problems. From dyslexia to killing small animals. [he doesn't want to hurt the animals, it's just an impulse.] I want to try to help him but I'm not sure how I can. My sister says that I should just be there for him and stay on his good side.

Any suggestions on how to help him?

And I don't want answers like "ew what a freak, get away from him."