Nicky Hayden was a MotoGP and Superbike rider killed by a car driver at the weekend. Raced motorbikes all his life without a serious injury and was killed on a public road by an inattentive or reckless driver, it isn't clear which.
I was at the race in Valencia when he won his world championship, he put so much pressure on Vale that he crashed in the first corner and never got back into contention.