Patrick disappeared from his hometown of Upland, California on January 20, 1988. Patrick and his friend went to the Pizza Chalet in Upland at 9:00 p.m. They had visited the establishment earlier that day as well. He and his friend played video games there and then Patrick left to walk home. A witness saw him leave with an unidentified adolescent male. Patrick's parents waited up all night for him to come home, but he never arrived. They reported him missing early the next morning. Shortly after Patrick's disappearance, the owners of the Pizza Chalet closed the restaurant and left town. There were rumors that they had returned to their country of origin. There is no evidence that they had any knowledge of what happened to Patrick. His case remains unsolved. He has brown hair and green eyes. Patrick has a skin discoloration on his lower left jawbone, near his chin. He often goes by his middle name, Shawn.