. >> did you have anything to do with the disappearance of paige birgfeld? >> no. >> i was put under psychiatric care for the first 48 hours and then sent to jail. >> i did not kill paige. i mean, that's the bottom line. >> reporter: it was late june, 2007, when news of paige birgfeld's disappearance first spread like the morning sun. over the mountains, in denver, four hours away, frank birgfeld was driving to his office. the phone rang. >> voice on the phone says, "this is somebody with the mesa county sheriff's office." and he said, "are you paige's dad?" and i said, "yep." and he said, "did you know she's missing?" >> reporter: barbara campbell got the call from her husband, hans, who told her -- >> paige is missing. i was, "what do you mean she's missing?" >> reporter: andrea land got the news in an e-mail. >> it said paige is missing in the subject line. i knew something horrible had to have happened because it didn't make any sense that she would be missing. >> reporter: no way for even a best friend to prepare for such a thing. >> stunningly beautiful