Longview police are searching for a gunman they say held up a conveinence store late Wednesday night. It happened around 11:30 p.m. at the "Kwick Food Mart" in the 700 block of South Eastman Road. Authorities say the suspect took off with an undisclosed amount of cash in a Red Ford Crown Victoria . The suspect is described as a black male, 5 foot 8 inches tall with short hair and wearing glasses. If you have any information, call Longview Police.