Greensboro police have charged a man with murder and a woman as an accessory in the death of a man reported missing last month. Mark Donovan Ray Graham, 31, is charged with first-degree murder, possession of a firearm by a felon, robbery with a dangerous weapon, and possession of a stolen motor vehicle, according to a Greensboro Police Department news release. Samantha Jean-Marie Panico, 40, is charged with accessory after the fact (to the felony of murder), police said.