Police are working to locate the gunman who robbed a Nashville Mapco station last week. According to police, the suspect entered the convenience store located at 26 Tusculum Road around 10:30 p.m. on January 14 and demanded money at gunpoint. After taking an undisclosed amount of cash from the register, the man fled on foot. The suspect is described as a black male in his late teens or early 20s.He is around six feet tall and weighs approximately 200 pounds. At the time of the incident, he was wearing a dark hooded sweatshirt and red tennis shoes. Anyone with information is urged to call Crime Stoppers at 74-CRIME.