Nathan Larson, 40, made the girl wear a long-haired wig to make her look older and told her to pretend to be mute during their travel, Fresno County Sheriff Margaret Mims announced on Saturday. The investigation began Monday morning when the girl's family reported her missing from her bedroom in Fresno, California. They took a rideshare car to the Fresno Airport, where they board a plane bound for Washington, D.C., she added. Mims said that while the girl was not physically harmed detectives have evidence of inappropriate touching at the airport. Larson was being held in the Denver County jail facing a misdemeanor charge of harboring a minor.