I already saw how it ended for Barry Seal, on Narcos.
"My dad was an airline pilot and early in his career when he was making beans he was approached multiple times to fly "private" planes in and out of central America for exhobidant amounts of money. He declined but a buddy of his from the Air Force signed up. One day the guy is landing at a small strip in California and the feds come out from all angles."
"He got busted, goes to the clink, keeps his mouth shut... and got murdered in the joint anyway... probably by the cartel who didn't wanna risk anything."