Well just reading some post here seems like he had major issues. Shows that even "stardom" can't resolve underlying issues just like being rich. Sad part is the way mental health is treated in USA. Instead of sticking him in insane asylum like in decades past now we just pump them full of God only knows what drugs.
Sometimes they might help even though not really for most drug treatments. My cousin is bat shit crazy but when he takes lithium it actually almost turns him into a normal human being. I believe he recently went off his meds and was drinking heavy which resulted in DWI. Least he hasn't hurt anyone yet that I know of except maybe ruining his relationship with his family.