Robin Williams

Robin McLaurin Williams was an American actor and comedian.  Born in Chicago, Illinois, U.S.A., on July 21st, 1951, Williams rose to fame in the 1970s in the sitcom Mork and Mindy.  He subsequently had a very successful career as a stand-up comedian and a film actor, including being nominated for four Academy Awards, winning the award for Best Supporting Actor in the 1997 film, Good Will Hunting.  In the late 1970s and early 1980s, Williams was addicted to cocaine, and later identified as an alcoholic.  In 2009, he had heart problems, having surgery to rectify the defects.
On August 11th, 2014, Williams committed suicide by hanging at his home in Paradise Cay, California, U.S.A., at the age of 63.  After Williams's death, his publicist, Mara Buxbaum, stated that Williams had been suffering from severe depression before his death; and his third wife, Susan Schneider, stated that he had been diagnosed with Parkinson's Disease shortly before he died.  An autopsy revealed he had diffuse Lewy body dementia, which may have contributed to the sudden appearance of anxiety, insomnia, memory loss, paranoia, and delusions, which became apparent in the year before his death.