Dayton Air Show crash

Thanks for the insight I'll look at the video closer. I do agree though that it was some type of mechanical failure. The plane suddenly rolls right (inverted it looks like left), it doesn't get blown by a gust of wind, or over trims ( as I've heard speculation). I don't know which direction the engine turns so I can't say if the engine lost power which caused the roll or, as I suspect, a flight control failure. I just got back from vacation and had very little, if any internet access so I'll keep looking.