Not that I know any more than what's on CNN, but it sounds like from the witnesses that it was one of the two solos (# 5 or 6). The picture above is of #7. correct me if I'm wrong.

My wife and I are saddened by this news as well. We just saw them here in Tampa a couple of weeks ago. Hell, they were working out of my Ops building.

This is one sad week for the whole country.