marketing the trump ocean club as part of a real estate portfolio where corrupt people could park their money? >> you got it. >> reporter: and they did. >> yeah. but they didn't just park the money. the money was turned over consistently. >> reporter: how does a luxury tower become a money laundromat? the buyer uses dirty money to buy unit 1605 in the unbuilt to you perp sometimes just two weeks later unit 1605 gets resold. the money coming out of the building is now clean. the proceeds of a legitimate real estate deal. the only way to trace its dirty origins would be to go back to the beginning, and identify the original buyer. and that should be relatively easy. but not in panama. our investigation led us here to panama's public registry. after going through a lot of paperwork a pattern started to emerge. tushs out many of the condo units aren't owned by individuals but panamanian