In 1971, a man boarded a plane with a briefcase, a plan, and nerves of steel. Hours later, he vanished into the night sky with $200,000 in ransom and left behind one of the greatest unsolved mysteries in American history. Who was D.B. Cooper? Was he a desperate criminal, a skydiving mastermind, or something far stranger? In this episode of The Grey Files, we dive into the infamous hijacking, follow the manhunt through the dark forests of the Pacific Northwest, and explore the suspects, theories, and bizarre twists that have kept investigators—and conspiracy theorists—guessing for over 50 years. Buckle in… this flight takes some wild turns.