Police in Storm Lake are searching for the suspect in an armed robbery. Authorities were called to the Caseys convenience store on Storm Lake’s Lakeshore Drive at eleven Thursday night. A worker tells police a man came in, showed a handgun and demanded money from the cash register and safe. The clerk gave the money to the robber, who fled on foot. No one was injured. The suspect is described as white or Latino, fifteen to 25 years old, short and thin with short dark hair.