Let’s start with the basics. He wire-transferred money out of the country...who was it sent to? Those are co-conspirators. Yet the identity of the recipient(s) has not been released. Why not?
They said it was real estate related. So maybe he sold a piece of property and deposited in a way that violated the law or something. His wife (who is already gone) is thought to have bought a round trip ticket but will not be returning.