Stephon Johnson, 18, of District Heights, was arrested and charged this week in connection with the 2023 murder of Robert Isiah Walker, according to the Prince George’s County Police Department.
The deadly shooting happened around 2:40 a.m. on Aug. 12, 2023, at a gas station in the 9800 block of Piscataway Road in Clinton, police said.
When officers arrived, they found Walker suffering from gunshot wounds inside the store. He was pronounced dead at the scene…