Mel Gibson pushed the theory that de-worming medication can cure cancer... And now a man is dead. Six months ago, Mel appeared on the Joe Rogan Experience, and the filmmaker and the comedian shared their medical theories. The embattled Oscar-winner said: "I don't believe that there is anything that can afflict mankind that hasn't got a natural cure for it. I think that there has to be - it just makes sense to me. Now, I couldn't prove it, but I just believe that there's got to be something that cures things.