You'd have to ask the people who hired Gary Mack that question. The Sixth Floor Museum is a non-profit organization run by the Dallas County Historical Foundation. Do you think they are part of the cover up too?
Gordon Arnold said there were PILES of dirt. Do you know of anybody else who said that?
"Non-Profit"? You're gonna throw that out there with ALL the FRAUD/$$ that is currently being revealed on an almost daily basis? Boy are you naive. Dollars to donuts that Frank and Jesse woulda claimed they were running a "Non-Profit" too.
Again, do the Research. Look at the Darnell Film snippet showing this area. And look at it frame-by-frame. You'll see. And this snippet is in the later 1/2 of the Darnell Film. The much better definition last 1/2 of the Darnell Film has yet to be released by the Sixth Floor Museum/NBC. It's now pushing 2 yrs since they released the 1st half of this film in HD.
The last 1/2 of the Darnell Film also contains the footage of my, "That Ain't Haygood", Bogus DPD Motorcycle Cop walking across the railroad yard. It's basically the JFK Assassination Version of the Patterson-Gimlin Film. What's the holdup? It's obvious. Blockbuster possibly on more than 1 Front.
Are You aware of anyone else that even claimed to have been in this area when shots were being fired? Anybody? There is NOBODY other than Gordon Arnold that I know of that claims to have been physically in this area when shots were being fired. And again, Sen Yarborough did verify that somebody was back there bouncing around.