

DB Cooper and Eric Ulis
On Thanksgiving Eve 1971, a man calling himself Dan Cooper skyjacked a Northwest Orient flight traveling from Portland to Seattle.
Upon landing in Seattle, Cooper ransomed the passengers for $200,000 and four parachutes. He then directed the jet to take-off and head to Mexico City by way of Reno for a fuel stop.
Approximately 36 minutes after departing Seattle, somewhere just north of Portland, Cooper parachuted out of the back of the jet never to be seen or heard from again.
Eric Ulis is one of the world's leading DB Cooper experts. He has researched, investigated, searched for and extensively written about the case over the last dozen years. This is the only unsolved skyjacking in United States history.
CooperCon 2023 :: November 17th - 19th
Do not miss your opportunity to grab Early Bird Tickets to CooperCon 2023 now!
CooperCon is the world’s only annual event that explores America’s legendary unsolved skyjacking.


Order Eric's New E-Book Now
Eric's new 150-page e-book, Silver Bullet: The Undoing of D.B. Cooper, will be available in digital (PDF) format beginning May 29th, 2023.
Silver Bullet dives into every aspect of the DB Cooper mystery as Eric strives to break the 52-year case. Eric takes his experienced, no-nonsense, fact-driven approach to the effort and focuses on the evidence, leveraging state-of-the-art technology, absorbing 30,000 pages of FBI files, and personally interviewing several critical witnesses to fuel his investigation.
Silver Bullet’s shocking conclusions will redefine the DB Cooper case and positions us to solve the case within days.
Summer of DB Cooper
Want the experience of a lifetime by joining on the frontlines as we seek to get access to DB Cooper’s clip-on tie?

DB Cooper Research From Eric

DB Cooper Flight Path Riddle
The believed flight path of the jet appears to be slightly off. What's up?

Tena Bar Money Find Spot
Eric re-discovers where some of the ransom was found in February 1980.

What Was DB Cooper's Plan 'A'?
It appears that DB Cooper's caper didn't go exactly as planned. Here's how.

Diatoms on DB Cooper's Cash
Fragile diatoms on DB Cooper's cash tell us about what happened, and when.

DB Cooper Boeing Connection?
The evidence strongly suggests a Boeing connection to DB Cooper.
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