[KYGrandma]

Good cover for a murder?

[Smokin' Joe]

I had not considered that, but it would be not such a tough thing for someone knowledgeable about aircraft.

Sabotage is seldom a guaranteed method, especially with a target who has a propensity for surviving tough situations, but it would fall into the realm of possibility.

Without evidence, though, it would be nothing more than speculation (same as I regard the whole bit about affairs and disappearing), but you seldom find that for which you do not look.