In reference to this new suspect out of Michigan...
It seems that anyone who has a suspect finds one or two things that tie them to the hijacker, such as being a veteran, or having worn a black tie. Then these people get an old picture and put it side by side with one of the Cooper sketches, and as long as it is a white guy with two eyes, hair, a nose, and a mouth, they are convinced it's him, even if the age difference is 20+ years. I appreciate that this forum has some controls on membership and posts (thanks Shutter), and that the majority of the suspects proposed on here through the years at least have more in common with D.B. Cooper than just being a white male who served in the military who once wore a black tie, have a pair of eyes and hair, and rode in an airplane one time.