. >> detective rick floyd discovered his real name is kenneth ojulott.show in 2007, at the bar we met him ken nebraska oujla tried a scam on a doctor in texas. "dateline" watched as an investigator from the local sheriffs department opened the evidence they seized in that case. >> this is the great book. including a logbook from his apartment listing hundreds of potential victims from all over the country. a possible clue on how thieves stay so organized when communicating all over the world. >> each page lists at least victim, 2300 from this person, 8300 from this person, 5,000 from this person, 6,000 from this person. the total take if you added it all. >> when i added it up it was $2.3 million. >> that's right. more than $2 million. and there's more. remember that black money trick shireen saw, the bundles of black bills. >> yes. yes. >> so, walk me through this evidence. when detective winer showed me the evidence, he said smuggling black money out of africa was part of the scam then. >> according to the doctor, he had seen a foot locker full of mone