Knievel's Wikipedia page has already been updated with noting his death.
And now Sports Illustrated has AP's Knievel obit.
Edit: And continuing this day's bizarrities, five people were injured in Chicago after an Amtrak train and a freight train collided. Dude, look at the picture: the Amtrak car is sitting on top of the freight car. Rick Emerson pointed out that it was as if the passenger car had been picked up and set down on the freight car. Whoa. I'm glad no one's badly hurt. (Added: I'm sorry; I heard wrong. The injuries were serious, so I'll hope they're not life-threatening at least.)