How 1 Ex-Convict Became a Millionaire. Uchendi "Chin" Nwani was the typical college student to the naked eye, but it was soon discovered that he was also one of the biggest drug dealers in the nation. The Millionaire Ex-Convict tells the story of how "Chin" found redemption after one of the biggest cocaine busts in American history, and fought his way back to become a legal millionaire.