Mario Talley 28, aka Atl rapper DG Yola is best known for the 2006 song “Aint Gon Let Up.” has been arrested for a pair of shooting one fatal at a Northwest Atlanta apartment complex. Rodney Walker was allegedly shot and killed by Mario last Sunday night at the Daron Village Apartments on Harwell Road. Isiah Knight told police he was shot and robbed outside the apartment complex. Police linked both shooting to Mario. He is being held at the Fulton County Jail. He is being charged with felony murder, aggravated assault and attempted robbery.