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Amateur Scientists Find New Clue In D.B. Cooper Case, Crowdsource Their Investigation (kare11.com)
Six months after the FBI closed the only unsolved air piracy in American aviation history -- after a 45-year investigation -- there's a new clue. An anonymous reader quotes Seattle news station KING: A band of amateur scientists selected by the Seattle FBI to look for clues in the world's most infamous skyjacking may have found new evidence in the 45-year-old case. They're asking for the public's help because of new, potential leads that could link DB Cooper to the Puget Sound aerospace industry in the early 1970s. The scientific team has been analyzing particles removed from the clip-on tie left behind by Cooper after he hijacked a Northwest Orient passenger jet in November 1971. A powerful electron microscope located more than 100,000 particles on old the JCPenny tie. The team has identified particles like Cerium, Strontium Sulfide, and pure titanium.
Tom Kaye, lead researcher for the group calling itself Citizen Sleuths, says the group is intrigued by the finding, because the elements identified were rarely used in 1971, during the time of Cooper's daring leap with a parachute from a passenger jet. One place they were being used was for Boeing's high-tech Super Sonic Transport plane...
Interestingly, it was even a Boeing aircraft that Cooper hijacked, and witnesses say he wasn't nervous on the flight, and seemed familiar with the terrain below.