Robin Williams had no alcohol or illegal drugs in his system when he died on August 11, according to details released by the Marin County coroner yesterday and reported by ABC News.

CNN reports:

Williams was found in a seated position on the floor of the bedroom with a belt secured around his neck and the other end of the belt wedged between a closet door and door frame.

The coroner did find prescription drugs in "therapeutic concentrations." Williams was in the early stages of Parkinson's disease at the time of his death.

[Photo via Associated Press]