Racer was driving in a dirt-track race when he hit a competitor who was walking . The driver of the car that struck him then drove away and left his victim to die. `` This has been one of the toughest tragedies I 've ever had to deal with , '' Stewart says . NASCAR will allow Stewart to stay in championship chase .
Racer was driving in a dirt-track race when he hit a competitor who was walking . Kevin Ward Jr. died of his injuries received at NY track . `` This has been one of the toughest tragedies I 've ever had to deal with , '' Stewart says . NASCAR will allow Stewart to stay in championship chase .