According to a statement from the Marin County Assistant Deputy Coroner Keith Boyd, Williams retired for the evening on Sunday after his wife went to sleep in a separate room. She left the home Monday morning and believed he was still asleep.
After his personal assistant became worried Monday morning about Williams whereabouts, she discovered him in a room in his home.
According to Boyd, Williams was found slightly suspended from a belt around his neck that was wedged between the door and the door frame.
Williams also had superficial cuts on the inside of his left wrist. Police found a pocket knife near Williams with red markings consistent with the appearance of blood, but Boyd said they have not yet determined the substance on the knife.
Investigators are running a toxicology report, but will not know whether Williams had any substances in his system at the time of death for a few weeks.
According to Boyd, Williams was recently seeking treatment for depression. The coroner would not release any other information about Williams' medical history.
Boyd would not say whether Williams left a suicide note.
Police are still investigating Williams' death and will make a final determination about the cause of death in several weeks.
Read Boyd's full prepared statement here.