Comedian Richard Pryor died of multiple sclerosis in 2005. Pryor is famous for setting himself on fire while freebasing cocaine in 1980. He suffered burns to more than 50 percent of his body, but later made a joke about it while doing standup in 1982. Later he told Barbara Walters that he had actually tried to commit suicide, but at the behest of his lawyers he made up the story that it was an accident.
(Photo: AP)
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