This is what I found on James Klansic, Derek Godsey wrote a post about him
Derek Godsey The Man who finally figured out who DB Cooper was says:
February 6, 2018 at 10:23 am
Forget about the Photos then. Look into his background. He was working on the Braking System for The Boeing SST plane when it was shutdown. He spent 13 months when he was shot down over Styer Austria in WW2. Paid his way through College by doing Electrical work. He was the Hydraulic Engineer for the Boeing 727’s and did you know the 727 was the first to use Hydraulics with its flight controls? His mother and father were from Slovenia and Austria. He was fluent in German. Isn’t it odd that some of the Dan Cooper comics were about a Brave pilot who was shot down a few times. Weinberg was from the same town in Austria as Klansnic’s parents. James Klansnic’s brother was from Cottage Grove where the weekend before the highjacking, flares were reported being seen dropped from a plane to the ground. What’s more important than that is that Klansnic’s brother worked for Weyerhaeuser and had access to all of the Weyerhaeuser land in the Pacific Northwest. He was the head of maintenance for Weyerhaeuser as well as helping with aerial photos for Weyerhaeuser. So you have all the elements that were found on the tie that match Klansnic’s work, his life experiences are almost the same as Dan Cooper in the Comics, and he matches the composites greater than any man ever has. Also I believe I have a picture of him wearing the very tie he left on the plane just minus the tie tack. This is a slam dunk and I have found a serial killer and when DNA confirms it will give me some media exposure and I will make sure the world knows James Klansnic was DB Cooper. His story needs to be told. I’ve never even read about a man like Klansnic. Can you imagine being a young handsome pilot flying a B-17 over Europe when you are suddenly shot and you have to bail out of the Bombay at 26,000 ft. You hit the ground and find an abandoned Cabin and manage to hide from the Nazis for a day and a half. They finally capture you and they are boys and soilders who have the same German blood in their veins as you do and speak the same language you can speak. You know that had to hurt. You spend 13 months in a labor camp and when you are freed you still have to pay your own way through college. You get a job at Boeing and work your way up their and you are asked to work on a project that will make history and you will be apart of it, when all of the sudden the United States Government pulls the rug right out from under you again. Whether that was what led him to pulling the highjacking off or not maybe only his son knows. I believe he had the smarts and courage and most importantly the ability to keep his mouth shut, that the CIA loves. Rackstraw got caught in everything he ever did and couldn’t hold water, the CIA would have never trusted him. James Klansnic lived until he was 94. I fully believe he was DB Cooper but even if he wasn’t he is still my favorite person of all time. A Man’s Man.