With out question Mr. Miken had some legal problems in the past, 30 + years ago.
Since his release from prison, he has become known for his charitable donations. He is co-founder of the Milken Family Foundation, chairman of the Milken Institute, and founder of medical philanthropies funding research into melanoma, cancer, and other life-threatening diseases. Seems too me the guy paid for past mistakes....we all make them. I don't see the problem with the Doc hanging out with a billionaire that likes to donate money.......hell I know I would.