Some cold cases only get colder as the years go on... but for one missing Arizona resident, things just reached a boiling point. 32 years ago, 13-year-old Star Valley girl Christina Marie Plante vanished, never to be seen again - or so what many might have believed. On Wednesday, the Gila County Sheriff's Office announced in an unexpected statement that Christina, now 44, has been located SAFE: "Sheriff J. Adam Shepherd would like to release the following information on Cold Case Missing Person from Star Valley, Arizona in 1994.