Incident happened last week
Investigators said the man entered the Greengate Walmart with receipts and shopping bags on him and then went through the store, selecting items and concealing them in the bags.
Police said the man then went to the customer service center and claimed he had purchased the items and wanted to return them for cash.
After the refund transaction was carried out, police said asset protection associates confronted the man, who then ran off.
Anyone who knows who he is are asked to call state police in Greensburg at 724-832-3288.