How do a 61-year old retired airline pilot and a flight instructor with 40 years of experience crash and die?

The most probable answer is he made a mistake. And if not the case for
this accident, it is probably the case for many other head scratchers.
Consider how many car drivers crash and die, and how much more
experienced they are driving than any of us are experienced flying.

People make mistakes, and aircraft themselves can fail.

Jose
--
He who laughs, lasts.
for Email, make the obvious change in the address.