The mother of the missing 14-year-old said the girl had a history of running away, so she waited until the next morning to report her daughter, last seen leaving for school the day before, as missing. A friend of the girl confided to mom that her daughter hadn’t shown up at school that day. Maybe she’s with her ex-boyfriend, at his house in Petaluma? She drove there, but no sign of the girl. Police has similar luck as they began an official missing person investigation. Then, on September 20, the phone rang at headquarters. The girl had returned home, the mother said.