Robin Williams's death was officially ruled a suicide in the Marin County, Calif., coroner's report released Friday.
The comedian died the morning of Aug. 11 in his home of suicide by hanging. He was found hanging from a belt in a closet doorway in his Tiburon, Calif., home. He also had cuts on his wrist.
The coroner's report revealed Williams had no alcohol or drugs — other than those found in "therapeutic concentrations" — in his system at the time of his death.
Williams' wife, Susan Schneider revealed after his death that he had recently been diagnosed with Parkinson's disease. A pathology report released Friday confirmed the diagnosis.
He had antidepressants — he had severe depression for years — caffeine and levodopa to treat Parkinson's disease in his system.