What happened to Michael Jackson?

No, I'm not referring to his death. Like so many others, I stopped being a huge fan of his of all the bizarre behaviors and disturbing allegations. However, now that he's gone, all I can see is that cute boy in the "beat it" video that I had a crush on and that adorable kid I used to see pictures of. How did his life go so horrible wrong? It' such a tragedy to have seen what his life turned into. I truly hope he's at peace!