Brantley Gilbert paid a humbling homage to the five courageous fallen military members Wednesday, September 16, during CHATTANOOGA UNITE: A TRIBUTE ON THE RIVER. More than 80,000 people flocked to the riverfront for the event including the families of U.S. Marine Gunnery Sgt. Thomas Sullivan, U.S Marine Staff Sgt. David Wyatt, U.S. Marine Sgt. Carson Holmquist, U.S. Marine Lance Corporal Skip Wells and U.S. Navy Petty Officer Randall Smith.