The Brief Police say a Walmart employee was shot in the leg during an argument between two customers Friday, July 31. The shooter left the scene and police are searching for the suspect. Police say a Walmart employee was shot in the leg after an argument between two male customers at the self-checkout line Friday, July 31, and the shooter left the scene. Officers are reviewing surveillance video and purchase records as they work to identify and locate the suspect. A Walmart employee, who police say was a bystander, was struck in the calf and taken to Penn Presbyterian hospital with non-life-threatening injuries.