maurice michael mccant is a convicted bank robber who claims he's gone legit. >> mccant carried himself as somebody who was legitimate. he had the swagger of a rap promoter. >> narrator: mccant offers 30% returns on investments in his rap-concert-promotion business... >> he actually said to them, "you can stop the bleeding that you're suffering in the market if you invest with me." >> narrator: ...and investors are forking over their entire nest eggs. >> i liquidated my i.r.a., and it was to the tune of a million dollars.