Warren police are asking for the public's help to find a missing 13-year-old girl.Alyssa Katherine Golding, who resides in the city, was last seen in the area of 12 Mile and Schoenherr roads at approximately 7:35 a.m. Monday as she headed to class at Warren Woods Middle School.Alyssa is described as white with blond hair, 5 feet tall and 199 pounds.