San Luis Obispo Police are looking for a man they say tried to rob the Ralphs grocery store on Madonna Road. It happened at around 9:30 Monday night. An employee tried to stop the suspect from stealing several items. That’s when the man produced what appeared to be a silver pistol. The suspect was able to flee the store and escape police. The gun turned out to be a non-functioning replica. Anyone with helpful information about this incident is asked to contact the San Luis Police Department.