just over a year since amber dubois vanished. >> another teenager was missing. ten miles away in a silverman san diego. >> i'm like, how can this happen with almost a year in the same not. >> it began in a parking lot neera and local hyping trail. >> we get calls oftentimes about juveniles, girls, runaways. >> to san diego chairs deputies responded to a call from panic parents. >> this one made the hair stand up on democrat's neck. >> 17-year-old chelsea king -- college bound, how come to rent or bernard o park in san diego. around two in the afternoon for a brisk five mile run. broad daylight. well known, well used, safe hiking.