we want to meet one family, the thomases of ohio. ole her image off the thomas family's memorial website. >> i had one of the detectives tell me, a while ago the was almost like, she knew my story, better than i knew my story. she had red my journal entry so many times it was like she internalized it. she would be calling famous people it was like she convinced herself she really was me. >> that is the sickest part about this. that is the part when i start to talk about that. that's when i get really mad. that there were real kids. that there were real photos. >> reporter: ironically the photos helped unravel the mystery. you pulled the data off some of these pictures. these journal entries were in some ways her undoing. she created them. didn't lift them. >> reporter: buried in digital images location data from the camera they were taken on. >> when you enter it in google maps it shows a location in mongolia. >> reporter: dead end at first. >> simply mongolia is on the opposite side of the world. if you enter a negative sign here, yo