Wharton again resumed the practice of law in Chicago, Illinois, but in 1928, he was convicted of conspiracy in connection with the robbery of a mail train in Evergreen Park, Illinois, and was consequently disbarred.
Wharton resumed his legal career in Chicago, Illinois, but in 1928, he was found guilty of conspiracy related to the theft of a mail train in Evergreen Park, Illinois, and subsequently lost his law license.