Eleven-year-old Patrick was last seen near The Pizza Chalet on Foothill and Euclid Streets in Upland, California, on January 20, 1988. He apparently spent time in the pizza parlor playing video games with an unidentified juvenile before leaving.
Patrick was reportedly seen leaving with the same unidentified juvenile that he was with in the pizza parlor. He told his mother that he was going to a basketball game with a friend at Upland High School. There was a basketball game that night, but it was in Chino, not in Upland.
Patrick's parents waited for him all night, but he never came home. They reported him missing the next morning. The Pizza Chalet moved to another location after Patrick's disappearance.
Patrick was last seen wearing a gray shirt, gray pants and white shoes. He has a skin discoloration on his left jawline near his chin. He hasn't been seen since.