Short answers, pulled from the story.
Robin Williams died on the 11th of August, 2014, from suicide by hanging. His autopsy revealed diffuse Lewy body disease, which doctors said produced symptoms consistent with dementia with Lewy bodies and had been misdiagnosed as Parkinson's disease during his lifetime.
Robin Williams won the Academy Award for Best Supporting Actor for his performance in Good Will Hunting in 1997. He also received nominations for Good Morning, Vietnam (1987), Dead Poets Society (1989), and The Fisher King (1991).
Robin Williams rose to national fame playing the alien Mork in the ABC sitcom Mork and Mindy, which ran from 1978 to 1982. At its peak the show drew a weekly audience of sixty million viewers and was credited with turning Williams into a "superstar."
Robin Williams refused to voice the Genie in The Return of Jafar (1994) because Disney broke an agreement he had made when accepting the original role, which prohibited the studio from using the Genie character in advertising and merchandise. The dispute was resolved when new Walt Disney Studios chairman Joe Roth organized a public apology, and Williams returned for the second sequel, Aladdin and the King of Thieves (1996).
Robin Williams began performing stand-up comedy in the San Francisco Bay Area in 1976, starting at the Holy City Zoo, a comedy club where he had previously worked as a bartender. He later moved to Los Angeles and continued performing at clubs including the Comedy Store.
Lewy body dementia is a brain disease caused by abnormal protein deposits called Lewy bodies that spread throughout brain tissue, producing symptoms including depression, anxiety, paranoia, memory loss, and delusions. In Robin Williams's case, his autopsy found the Lewy bodies spread widely throughout his brain, a distribution the Lewy Body Dementia Association described as consistent with dementia with Lewy bodies; several doctors described the pathology as among the worst they had seen.