Just what is the evidence against him being Cooper? The alibi for his location? Not good enough
Evidence Against McCoy being Cooper:1. All three flight attendants - Tina, Flo, and Alice - ruled him out based on photos and voice recordings.
2. Seattle-based, apparently, interviews that revealed McCoy was home, ie: testimony from McCoy's sister-in-law, Denise Burns, and an individual from BYU who claims he saw Richard McCoy at 10 am in his home.
3. Height - too short; reports vary from 5'6" to 5'10"
4. Age - too young at 28.
5. How did McCoy get titanium, aluminum, and rare earth minerals on his clip-on tie? (Hat tip to Eric for this one).
6. Money deposit at T-Bar unlikely by a bag drop into the Columbia, as espoused by Dan Gryder, due to lack of winter-time diatoms on the ransom bills found in 1980.
Evidence for McCoy being Cooper:1. Salt Lake City FBI agents, led by SAC Russ Calame, got copies of McCoy's credit card receipts for gas in or around Las Vegas for Nov. 23 and Nov. 25.
2. Calame's team got a copy of McCoy's collect call from the Tropicana Hotel in Las Vegas to his home in Provo at 10 pm on Thanksgiving Day, Nov. 25.
3. Denise Burns confirmed to Dan Gryder that she was home alone with the two kids, Chante, aged five, and Rick, a toddler, for 3-4 days during the Thanksgiving Day holiday.
4. Chante and Rick McCoy say currently that they have always known their father to be DB Cooper but kept quiet for 50 years to ensure their mother and grandmother did not face any prosecution or legal difficulties.
5. Multiple family members told Bernie Rhodes that the tie and clasp found on Flight 305 was identical to one owned by Richard McCoy.
Glaring Errors or Omissions in the Gryder's Docu1. Ralph Himmelsbach was not the "Special Agent in Charge." That was J Earl Milnes in Seattle and Julius Mattson in Portland.
2. Ralph Himmelsbach was not the FBI's case agent for the DB Cooper case. That was Charlie Farrell until 1977, and then Ron Nichols afterwards. Both agents were stationed in Seattle, which was the "Office of Origin." Yes, Ralph Himmelsbach says he "named" Norjak, and no one has ever challenged him on that claim.
3. Gryder ignores the fact that Tina Mucklow said on multiple occasions that she saw DB Cooper fashion a rope handle and cinched the money bag closed and attached it to his belt. In addition, he also apparently constructed some kind of small money bag from the "dummy" reserve chute.
4. Karen McCoy apparently had crafted her own relationship with the FBI that ensured her freedom from any prosecution or liability in both skyjackings. How she did that is not known, but it is widely speculated that she opted to work with the FBI after the United 855 hijacking in 1972 and assisted them in locating her husband in Virgina Beach, where he was shot and killed by the FBI. This would seemingly negate the need by the family to keep this all quiet for 50 years.