Earlier quoted context omitted.
Note, however, that this doesn't mean that he would have gotten away with it if he'd cooperated. It means that the federal prosecutor decided that the act of obstruction would be easier to prove, since the intentional nature of those acts is much more self-evident.
> [...]this doesn't mean that he would have gotten away with it if he'd cooperated[...] If he'd stuck to the story that he just had an engine mishap would they have been able to prove that it was intentional? They'd almost certainly have revoked his license to ever fly again, but filming everything you're doing isn't illegal. Nor is wearing a parachute because you know you're a crappy pilot that'll bail out at the fi…
1. Some other illicit activity was going on in or around that plane.
2. The pilot thought he could make the whole mess go away by erasing physical evidence of the crash; his reasoning might be along the lines of "no evidence, no feds".
I find both equally credible. I'm stumped.