I know the kid was an idiot for getting out of his car and standing in the middle of the race track, but after watching the video with full sound it's pretty clear that Tony Stewart revved his engine right before he hit the guy. I think there has to be some sort of charge against Tony
Stewart based on that. There was an aggressive move there by Stewart that led to the demise of the other driver. If he doesn't rev the engine then the 20 year old doesn't get hit at all.

Just listen to the sound on the video right before the incident.