Interesting. Thanks, Jack.

I oughta read the comics someday soon.

I have spent the last few hours searching this forum for comments on the 5 letters received after the hijacking. My feeling is that the first 4 (core four) letters are bogus.  The tone of the letters doesn't sound like what we know about Dan Cooper, and the fact that some are handwritten and others cut and pasted from magazines doesn't make sense either.  As we know, Dan wouldn't even leave his "Miss, I have a bomb" note oon the airplane.  However ... the fifth letter, type-written, is a whole different ballgame.   The tone is completely different than the others.  It's also the last letter received.  I think this one MIGHT be legitimate.  It's well-written and fits with what we know of the case.  I think Dan Cooper wore a disguise of sorts (contacts, dyed hair, borrowed clothes) and I think he may very well have been dying. Tina said he was a very sad man.  Do we know if the saliva from the stamp has been tested?   Or did the FBI lose this too?

when it comes to Cooper you have to ask why he would wear make-up or change his appearance..the glasses were the best defense. the color not so much IMO. make-up was nothing like it is today, just like a toupee which would of been very noticeable in the 70's. the clothes could of been bought somewhere, but what extreme did he really go to prior to the crime? if you are not known by many, the chances of being spotted are very low. they chased thousand of look a likes.

one has to ask why Cooper wouldn't sign the letter by "Dan Cooper" there are dozens of letters sent to the FBI found in the 302's, all are signed by "DB Cooper"

make-up was noticed right away with McCoy...

I strongly disagree.  The stewardess can't even tell us if he was wearing a brown suit or a black'suit and we're supposed to expect them to tell us if he had a thin coat of professional make-up on?  I'm not talking about obvious blush and mascara.  I'm talking liquid makeup or even a tinted powder to give him an olive complexion.  He had EVERY reason to wear a disguise.  In fact, 39 reasons/eyewitnesses!   Would you rob a bank without a mask?   Then why Rob a plane without one?   The sunglasses were indeed part of the disguise, but they also drew a bit of suspicion. Brown tinted contacts would not draw suspicion and yet would allow armchair detectives to eliminate blue-eyed suspects.  And black hair dye would be another easy thing to do.  This guy was a neck of a lot smarter than you give him credit for.

So, here is the real DB Cooper!

Where did he get his circus training? And did he know Carter Page and Paul Manafort?

Lol!      I dint know what kind of disguise he was wearing, but I think it was more than just a pair of sunglasses.

Tom did find evidence of makeup (woman's makeup) on the tie!

DB planned this out.  Why walk in front of 39 eyewitnesses without some sort of easy disguise?  The stewardess have been looking at photos for 45 years.  DB would have expected that.
The only possible explanation for no disguise would be if he planned to immediately leave the country and never return.

McCoy was the only one who tried to cover his appearance..why didn't the others?