A heartbreaking discovery may have been made in the case of missing teen Camila Mendoza Olmos. On Christmas Eve, the unthinkable happened: a Texas family's daughter disappeared early in the morning. The Bexar County Sheriff's Office revealed on Monday, that the 19-year-old "left her residence" on foot early on December 24. WOAI-TV reported she was seen in home security footage opening the back door of her car, but ultimately leaving the vehicle. Camila's mother told authorities it wasn't uncommon for her to go on early morning walks... but never to not return.