1. Marilyn Monroe (Age 36)
Beloved actor and Oscar winner Robin Williams ended his life in August 2014 by hanging himself with a belt at his home in Paradise Cay, California. It was revealed after William’s death by asphyxiation that the actor had been struggling with Lewy body dementia – which may have been misdiagnosed as Parkinson’s disease – a long history of depression, and a “recent increase in paranoia.” Doctors believe that Williams’ Lewy body dementia “was the critical factor” that resulted in his suicide. The iconic actor’s ashes were scattered in San Francisco Bay.