Adam's main trouble was a girl. A girl he had extreme feelings for, a girl he loved immensely...a girl who didn't love him back. A girl who had a boyfriend, and was the sister of his best friend, a girl he, in reality, probably never could have had.
Adam had family troubles, problems of acceptance with his father, who seemingly objected to him being a wrestler, and other problems with his mother. I remember explicitly the last conversation I ever had with him, he was panicked, mentally out of control, seeking advice that I could not give, seeking solace from a life that was spinning out of control. The last words I ever typed to him were to tell him that his problems were too extreme for me, and that he should seek professional help.
That was last April, eight months ago. None of our circle of friends has heard from him since. Mike had a conversation with him a bit before that, and told me he was in the same state of mind.
Though we can only speculate what happened to him, the consensus is an unfortunate one.