You can learn more on David Carradine's cause of death in "David Carradine: The Eye of My Tornado". The book is by Carradine's ex-wife. I found it on Amazon.
David Carradine's Cause of Death: Kink?
Last week iconic martial arts actor, David Carradine, passed away in what many thought was suicide. However, his body was found hanging from the clothes bar in his closet with his hands and genitals bound--ehh suicide not so much. It seems as though Carradine was performing an "auto-erotica scenario."
After the photos were leaked, images filled the Internet with the actor's body covered in fishnets, a piece of red lingerie on the bed, and what appears to be the actor wearing a wig.
And though it's possible that this was a sex-act gone wrong, Carradine's family is refusing to rule out a possible homicide.
Although there are signs this could have been a sexual act that turned accidentally deadly, family sources say they are still suspicious of the circumstances and have not ruled out homicide. (source)
But people, we've all seen Silence of the Lambs. Alo Clarice.