nearly right it was the 1973 dutch grand prix when he tried to save roger. the car which he crashed at silverstone in the big accident is on display at the donington museum,in it's as crashed state along with the next car he used it was sponsored by lec the fridge makers at the time.
He was killed in 1985 when he crashed his aerobatic plane into the sea off bognor IIRC

I visited the doningtom museum last year and I have to say it really is fantastic, I could have spent all day in there shame the wife wouldn't! lol

steve