I copied this from another site:
It was her first full pass down the strip. The track has a swing out section of the wall that the juniors use to exit the track. She has come down the track and tried to take the turn and contacted the end of the wall that's exposed when the gate is open. She has hit the end of the wall side on effectively, right on the cockpit. It happened at less than 30mph as she had only turned 8 on Thursday and was in the beginners class with speed restrictions. It's just an accident. Not the tracks fault, not the track staffs fault, not really the little girls fault either. Just one of those one in a million accidents that had the worst possible result.