 Police say 16-year-old Juan Roach was shot and killed during a robbery. The suspects are 21-year-old Walter Plummer of Suitland and 21-year-old Akia Bagley of D.C. Plummer is charged with first and second degree murder and related charges, while Bagley is charged with assault, accessory after the fact, and additional charges. Police say Plummer and Bagley are in custody. No bond.