I know that there are some that have come forward, that did suffer child abuse. Micheal Jackson has talked about some of his child abuse from his father. His sisters and brother have also talked about it as well. And I really think that Michael was not a sex abuser, I honestly think there is a strong possibility that he just felt more comfortable around children and felt like he could just be more himself, after all, he was pretty much denied a normal childhood. And his constant desire to alter his appearance and not be satisfied with his appearrance is also another sign of low self esteem. Many entertainers that are really gifted on stage are actually very shy in real life and otherwise have very low self esteem. Billy Joel was a very troubled young man, so was Elton John. And in their day, there really wasn't much known about PTSD so that could be a part of it. Many of the stars are in therapy and talk about disfunctional families growing up.

I don't know if your going to find anything official yet. To be honest PTSD is really a fairly newly recognized diagnosis, they are still studying it yet. I sought therapy a couple of times as late as 15 years ago and I raised all the red flags and it was never mentioned to me, I never even heard of it.
So it is really being studied a lot more now than ever before. I wish I had known way back when, it may have helped me see things better and done a better job at stopping abuse.

Open Eyes