Flight 305 crew statements
Testimony
Schaffner, Mucklow and the cockpit crew described the demand, the Seattle exchange and the aft-stair departure. Those statements fix the crime even without a body.
Evidence quality is enough to prove a hijacking and a jump, and not enough to name a defendant.
The 1980 bills are the only authenticated physical recovery of the ransom.
Exhibits
Ransom serial list
Document
Banks and the FBI recorded the $20 serial numbers before the bag went aboard. That list later authenticated the Tena Bar find.
FBI composite sketches
Archive
1972–73 portraits that became the public face of Cooper. They are witness memory rendered by an artist, not a photograph of a known man.
Tena Bar $20 packets
Physical
About $5,800 found 10 February 1980 and matched to the ransom list. Soil and placement have been argued ever since; they did not yield a name.
727 flight-path data
Technical
Speed, altitude and a pressure change used to bound the jump corridor over southwestern Washington. Models have shifted; no wreckage of a jumper was found.
2016 FBI closure notice
Document
The Bureau’s public statement that NORJAK would no longer be actively investigated. It is an administrative end, not an identification.
How strong is the record?
Identity of the jumper10
No charge, no consensus, no authenticated remains.
Proof of the hijacking92
Crew, passengers, ransom paperwork and the empty aircraft at Reno.
Ransom recovery18
About $5,800 of $200,000 authenticated at Tena Bar.
Jump-zone precision35
A reconstructed corridor, redrawn more than once; no confirmed landing site.
The strongest evidence names a flight and a bag of bills. It does not name a man.
Public-record encyclopedia. Not legal advice. Not a how-to. Graphic detail is withheld. Wars belong in a separate atlas.