Actor-comedian Robin Williams found dead. (Twitter/@FOX29philly)

Official are investigating the cause and circumstances of William's death. 

He was 63-years-old. 

The Marin County Sheriff's Office said William's was found unconscious Monday afternoon around 12:00 p.m. inside his home.

Coroner Division suspects the death to be a suicide due to asphyxia, but the investigation will reveal the cause. 

A forensic examination is scheduled for August 12, 2014 with toxicology testing to be conducted. 

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