St. Paul Police are asking for the public’s help in finding a teen who has been missing for three days. 17-year-old Chuejee Thao was last seen around 2:30 Monday afternoon getting off his school bus at Livingston Avenue and Isabel Street on the city’s west side. Thao is five-foot-six-inches tall weighs 120 pounds and has brown hair and brown eyes. He was last seen wearing a green hooded sweatshirt and dark jeans. Anyone with information should call 9-1-1.