Although several clues have emerged over the decades, the identity of the hijacker continues to remain a mystery.
A new effort is underway to uncover evidence that could help solve the infamous 50-year-old hijacking case.
A passenger who sat near Cooper during his infamous plane heist has spoken out about his experience.
A hidden code may have finally lifted the lid on the mysterious hijacker known as DB Cooper.
Volunteer detectives have located what could be a critical piece of evidence in the long-running case.
An independent investigation in to the long-running mystery has managed to dig up an important new clue.
Officials have finally admitted defeat after failing to solve the case of a 1971 airline hijacking.
The man who successfully hijacked an airliner in 1971 might have been a missing grocery store manager.