there was no use of it. we checked his bank accounts from the time he was missing. we checked his medical insurance to see if he check into a hospital. that never showed any activity. he was completely dropped off the face of the earth. reporter: but then, out of nowhere, a sighting. hundreds of miles north of los angeles, a businessman visiting the central coast says he saw gavin smith and a beautiful woman at a cash only taco restaurant in morro bay. i happened to click on the link saw the photo and oh, boy. reporter: the waitress corroborated the story. t he was sitting right here, she was sitting right there. reporter: his sister raced up the coast to the restaurant. i said, here s my brother s picture. did you see him?e reporter: and? no. that was truly heartbreaking to me. reporter: it was all a big mistake. but it wasn t the last of the sightings.n people seem to see gavin smith