(Sioux Falls, SD) — Three Sioux Falls men are targets of a money-laundering investigation. Agents with the IRS and Homeland Security Investigations are conducting the investigation. Authorities say Antyon Hogan Jr., Marvin Williams, and Giovanni Hamilton fraudulently obtained money from a number of banks and laundered it through actions like wiring and transfers. The suspects are charged with money laundering conspiracy and bank fraud conspiracy. They appeared in federal court on April 7th.