Ep 6. D.B. Cooper

In Brad Meltzer's Decoded season 1 episode 6, titled "D.B. Cooper," the team investigates one of the most infamous unsolved mysteries in American history: the case of a man known only as D.B. Cooper, who hijacked a Northwest Orient Airlines flight on November 24, 1971, and disappeared with $200,000 in ransom money.

The team begins by retracing Cooper's steps leading up to the hijacking, exploring his personal history and possible motivations for the crime. They also review the evidence and clues left behind, including the parachute and money found in the woods near Cooper's supposed landing zone, as well as witness testimonies and composite sketches of the suspect.

As they dig deeper into the case, the team considers various theories and suspects, including Cooper's possible connections to the CIA, the military, or organized crime. They also explore the possibility that Cooper may have had an accomplice on the plane or after the escape.

To gather more information, the team visits a former FBI agent who worked on the case, as well as a skyjacking expert and a forensic linguist who has analyzed Cooper's ransom letter for clues. They also consult with a group of skydivers who attempt to recreate Cooper's jump and analyze the feasibility of his alleged landing site.

In the end, the team presents their findings and theories on what may have happened to D.B. Cooper. While the case remains unsolved, the team's investigation sheds new light on the mystery and offers a fresh perspective on one of America's most enduring unsolved cases.