There sure does seem to be an awful lot of different law enforcement agencies getting involved with the investigation.
I don't know that I think he was murdered as in a planned murder for his estate or something; but I do think his death was the fault of those closest to him. He had an addiction to pain killers, he obviously was using that other drug that put him to sleep, his weight was so low that it was very unhealthy and he was addicted to plastic surgery. His death was the fault of those in his inner circle that could not tell him no and would not help him.
My cousin's wife administered diprivan to him 10 years ago, when she was a hotel doctor out of the country. She said that he was extremely timid, apologetic, and really just a child. They first gave him a strong narcotic, but it didn't even make him drowsy.