I think that the plane with the wings that fell off was an aero commander.  I think Bud Anderson flew that exact same kind of plane for years on the airshow circuit, and it turns out that the plane had a design flaw the whole time and he was probably half a G from ripping the wings off.  Some other guy just did it first, and after the investigation Anderson never flew that plane in a demo again.  I heard he was pissed at the company for having him basically be a flying salesman doing aerobatics in a plane with a weak wing.
Edit:  Yea it was Bob Hoover, not Anderson.  My mistake.