When Katelyn Markham vanished without a trace, investigators were left chasing shadows. A registered sex offender. A troubled coworker. A longtime fiancé with too many explanations. But as leads faded and the case grew cold, the real truth remained buried - until, 12 years later, a forgotten clue cracked the mystery wide open. Who was responsible for Katelyn’s fate? And why did it take more than a decade to bring them to justice?