Man caught on video robbing Miami gas station

Police are searching for a man who was caught on surveillance video robbing a Miami gas station.The robbery happened Tuesday at the Shell station on Northwest 22nd Avenue.According to Miami police, a woman who was working at the cash register said she was dealing with customers when she looked up and saw the man walking toward her with a gun in his hand. He said, "Give me all the money," and took the $400 inside the cash register while pointing the gun at her head.The man then pointed the gun at