up, and on it her father would discover a mysterious text from a stranger. who was he and could he lead them to kenia? here again is keith morrison. >> april 1st, 2011, dawn in denver, colorado, bright, springlike, and for the friends of 19-year-old kenia monge, terrifying. >> i just kept calling her and calling her. we were all worried and scared. >> where was she? kenia was supposed to have met her friends at a downtown bar the night before. didn't show. and now she didn't answer her phone. not like kenia. not at all. >> we didn't know what happened. nobody knew nothing. >> kenia's friends truly frightened now kept texting, calling, but not a single lead turned up. no tips, no clues and no kenia. >> we were just trying to be