Print Tyler Waldman, WBAL NewsRadio 1090 and FM 101.5 The man wanted in the January killing of a Maryland Transit Administration mobility driver has been arrested in South Carolina, police said Tuesday. Marquis Poteat was arrested in Florence, South Carolina, with the help of U.S. marshals and Florence County sheriff's deputies. Poteat, 33, is awaiting extradition. When he is returned to Baltimore, Poteat will be charged with first- and second-degree murder, first- and second-degree assault and firearms violations. Frankye Duckett was seated in his vehicle when he was shot. It came three months after bus driver Marcus Parks was shot while on duty.