His wife doesn't know how he died. I just wonder whether it had anything to do with the horrific accident he was in 10 or so years ago, where he was dead for 5 days or so and months later the blood wouldn't drain from his brain. His surgeon said go home and day goodbye to your kids, tomorrow i am going to cut cut the top of your skull off and try and remove the blood manually. Miraclessly the blood had drained next day... Coould have been something lying dormant in his brain for all these years.
Its true not everybody found him funny and genuis is handed out too easily but not in his case. Influenced by the pythons, he connected with a lot of people....I'd put him up there with comic greats like Tony Hancock and Spike Milligan.