No call for rumor mongering about Bowie's death, He died of cancer. His sexual tastes were rumored to be androgenous witch was revolutionary in the 70s but would not raise an eyebrow today. He was a brilliant businessman in many ventures including the first internet platform allowing Yankee fans to communicate with each other. While I'm sure he used drugs, like most people back then, he did not use like all the more tragic rockers of his day, nor did he ruin concerts showing up too stoned to perform.
David Bowie was bright, pushed the envelope and did not feel restrained by social norms. None of this means he died differently from any other 69 man.