Summerville Police investigated a reported theft on Northwest Congress Street on Wednesday.  A responding officer spoke with the complainant who said that he had left a cooler on the back of his truck.  He later observed that the cooler was missing.  Along with the cooler being gone, there were prescription pills missing from the cab of the pickup truck.  The complainant identified a possible suspect to the responding officer.  Summerville Police talked with the suspect who denied the theft.  The suspect gave police consent to search and police were unable to locate the cooler or the medications.  The theft is still under investigation.