No Drugs or Alcohol in Robin Williams' System at Time of Death

From AP:

Robin Williams’ autopsy found no alcohol or illegal drugs were in his body when he killed himself at his Northern California home in August, sheriff’s officials said Friday.

The autopsy results released by the Marin County sheriff’s office found that the actor had taken prescription medications, but in “therapeutic concentrations.”

The coroner ruled Williams’ death a suicide that resulted from asphyxia due to hanging.

This makes a sad story even sadder, given that he was driven to that much despair without any drugs or alcohol muddying up the decision making process. No doubt his long battles with both fueled his depression and vice-versa.