Oh, I should add that one reason I thought of pilot incapacitation is that
this crash reminded me of a similar fatality at KBED a couple of years ago.
There too, a very experienced pilot crashed in benign IMC after exhibiting
serious confusion during his first approach. In *that* case, the NTSB
reported that a shaving kit found in the pilot's baggage contained used
diabetes paraphernalia (even though the pilot, a physician, had not
disclosed diabetes to his AME).

http://www.ntsb.gov/NTSB/brief2.asp?...FA205& akey=1

--Gary