A very sad day. While he was NOT a big name, he was one of my favorite drivers. I had a small PC of him, mostly autographs and race-used, but sold it off a couple of years ago to a guy that has a major PC of Jason.
Sir Jackie Stewart once called motorsoprt "the cruelest mistress there is" and when asked why he said that he responded "because it takes so many good people", it's events like this that make you realize just how right he was.
My thoughts and prayers go out to the Leffler family.