The body of a 13-year-old boy, missing since late Sunday, was found in Silver Lake on Wednesday afternoon after three days of search efforts. Portage police identified Shayn Wolffarth of Portage as the boy who was last seen on a flotation device on the lake late Sunday afternoon, before falling into the water and disappearing below. “On behalf of the city of Portage ... I come to you with mixed emotions. First of all, our thoughts, prayers and condolences go out to the family for their loss,” Portage Police Department Administrative Lt. Keith Klafke said when he made the announcement of the recovery Wednesday.