GAHANNA, Ohio -The Gahanna Division of Police is searching for 16-year-old Gavin Thoen, who went missing on Wednesday. Thoen, who has autism, was last seen leaving his job at Dairy Queen in Gahanna around 5:45 p.m. An endangered child advisory has been issued for several counties due to concerns for his safety. He was wearing a black puffy jacket, Dairy Queen uniform, black pants, and shoes, and is described as 5’11”, 116 pounds, with brown hair, blue eyes, and glasses. Anyone with information is urged to call 911 or Gahanna police at 614-342-4240.