Probably the guy knew too much, was in too deep, and knew he was headed for the hoosegow.
I’d think a criminal banker who was not incarcerated would choose to flee to a non-extradition country and transfer his ill-gotten funds into a local bank there. It’s not at all likely that he’d off himself, especially in the same way Epstein did.
I mean, look at the two choices. what would any crooked financier choose as the first option, and which would be their last option?