Robin Williams' Death Officially Ruled a Suicide

The coroner's office in Marin County, California confirmed via an official statement today (Nov. 7) that Robin Williams' cause of death on Aug. 11 inside his home was in fact suicide.

The statement also revealed that alcohol and drugs were not involved in Williams' death -- in addition to battling depression, the actor also served several stints in rehab for drug issues.

Credit: Interscope Communications

Shortly after his death his wife revealed that the actor and comedian was in the early stages of Parkinson's disease.

The coroner's office also revealed that prescription drugs were found in Williams' system, but they were only in "therapeutic concentrations."

We still can't quite believe that he's gone.

NEXT: Robin Williams' Daughter Zelda Gets Memorial Tattoo