Just read this on the Porsche forums: It has been confirmed the Unlimited P 51 mustang plane "Galloping Ghost" piloted by Jimmy Leeward from Florida has gone into the stands". Jimmy Leeward was an experienced flyer and former IMSA racer, I remember him at Sebring and Dayona in an RSR. It's not known yet but it had to have been mechanical failure, one report said an elevator trim tab failed or broke off.
Air racing is as risky as it gets for participants, but the tragedy is how many on the ground were killed or injured. The video is frightening, he went in nearly vertical.
'Mass casualties' after crash at Reno air show - US news - Life - msnbc.com
At Reno the stands are well away from the course but the way this happened, the question will be how any future races are staged.