This is the craziest Wikipedia article I've read in a while.

Feel sad for the dudes mental health state, but damn, what a way to go. A well executed barrel roll in a q400, seemingly without prior flight experience. Wild.

All planes can do a barrel roll. When executed properly a barrel roll is a 1g maneuver. At no point during a barrel roll should a plane experience any forces significantly different to level flight.

The largest plan to ever be barrel rolled was a Concorde prototype.

Still reading the article, but I felt compled to comment on the level of detail:

Both [fighter jets] [...] reached supersonic speeds, which generated sonic booms on the way to the Puget Sound area. [emphasis added]

Are these sonic booms relevant to the actual incident? Probably not. But the author decided it was part of the events and decided to include it and I find that endearing.

Drug mule I'm assuming

Maybe a bush pilot. There are many remote areas that don't have airfields big enough to service large planes and if medicine, food or people need to go there, they have to be brought in by smaller planes that can land on those airfields.

Here is a YT channel of a bush pilot in Papua New Guinea if you're interested.

Probably Instructor, to become the big jet pilots you have to start on the small planes.