Heinz (helo), Wellstone also come to mind.
What strikes me is that driving for 45 years I can only recall engine failure three times, but the number of hours on the road way excedes what I would experience casually in the air. Plus, not nearly the attention to maintenance. Two of the times were due to rubber belt failures which in a plane would have been proactively replaced. The third time, was due to an electrical fuse problem but the manufacturer (Chevrolet) already had a bulletin out.
Piston planes are dangerous.
Some are much more dangerous than others. And the MU2 is a turboprop, not a piston. The MU2 has a bad reputation and the plane was recently purchased, so the Dr probably didn't have much time in it.