i told her karlyn's gone. she's gone. >> she was a beautiful young mom doing important work. >> she was an intelligence specialist. >> some of her work was very sensitive. top secret. >> i believe she had top secret clearance. >> when she was found dead, everyone wondered, did her work cost her her life? >> i remember them telling me did she come into a lot of money she couldn't explain? >> maybe she was selling secrets? >> maybe. >> that's like out of a spy novel. >> what about other secrets? the personal kind. >> we knew they were having issues. >> right before they got married she found out that he was cheating. >> but somewhere out there was a stranger keeping secrets too. >> my data guy starts going through her facebook. >> she made reference to firearms in her social media. >> we saw that they were communicating her gas mileage. what a weird thing to do. >> a mystery that would drag on for months. and then, one final secret uncovered by science. >> you start peeling the layers back until the number is vi

i told her karlyn's gone.n intelligence specialist. >> some of her work was very sensitive. top secret. >> i believe she had top secret clearance. >> wn