Police are asking the public's help in tracking down the suspect in a local convenience store robbery. On Wednesday, a man reportedly entered a store in the 9000 block of South Maryland Parkway, pointed a gun at the clerk and took an undisclosed amount of cash. The suspect is described as white, in his 20s, about 6' and 160 pounds. He was seen on surveillance video wearing a black baseball cap, black T-shirt, and black pants. Anyone with information that can help should call Metro or Crime Stoppers at 385-5555.