Some reports say that the trim tab appears to have separated from one of the elevator halves.
If this is true, then I'm surprised that he was able to maintain any control what so ever. Any movement of the elevator would have caused an uncontrollable rolling of the aircraft. It now makes sense to me why he was in a right turn (the race course is all left turns) and then rolled inverted, and then hit the ground. If the trim tab separated from the left half of the elevator, any upward movement of the elevator would have cause a right rolling force on the aircraft.
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