A 32-year-old man was arrested Sunday after police said he robbed a northwest Oklahoma City Dollar General store at gunpoint.Tomario Jay Goldsby walked into the Dollar General in the 1600 block of North Meridian Avenue, pulled out a revolver and told the clerk to give him all the money from the back of the store, according to a police report.The clerk told Goldsby that the only money there was in a safe, and Goldsby put the gun into the clerk's back as they went to get the money, the report said. The clerk opened the safe and gave Goldsby an undisclosed amount of cash.Goldsby left the store through the front door and drove away. The clerk contacted police and told them what kind of car Goldsby was driving, according to the report.Police found Goldsby's vehicle and arrested him on suspicion of robbery with an imitation firearm and attempting to escape from custody. He was booked into the Oklahoma County Jail.