Comedian Robin Williams used a belt to hang himself according to reports revealed by the Marin County Sheriffs Office.

The report, which is available publicly online, details that a 9-1-1 call was made to report an unconscious Williams was discovered Monday at 11:55 a.m., California time. Officers were dispatched to Williams' Tiburon home.

The officers arrived at 12:00 p.m. and, along with help from two fire departments, came to check the scene. Williams was pronounced dead at 12:02 p.m.

Williams was last seen by his wife the night before in their home in Tiburon. He was discovered by his personal assistant with a belt around his neck.

Williams' wife Susan Schnieder left Monday morning about an hour before police were called. She had assumed he was still sleeping.

In the report, Marin County Sheriffs Office say WIlliams "was in a seated position slightly suspended off the ground," Lt. Keith Boyd said.

"What that means is that his body looked like he was sitting in a chair," Boyd added.

Police also found some stab wounds in Williams' left wrist and a pocket knife near his body.

In the report Boyd says no signs of struggle were found and that the cause of death is being called suicide by asphyxia due to hanging.

Boyd did not confirm if Williams left a suicide note.

Toxicology reports are pending and could take two to six weeks to complete. Those reports will determine if Williams had any illegal or prescription drugs in his system at the time of his suicide.

Williams is known for his comedy and acting. His publicist noted he had battled decades of addiction and was recently suffering from "severe depression." Williams was 63.

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