I suppose it's true that this image showing Ruby's scruffy hair growth in back is the most exonerating one, proving that he was not the garage shooter.
And the one I am going to show you to contrast the Garage Shooter is one that The Wizard sent to me. He said that it was shown at the Ruby trial. He also told me that he believes that they enhanced the hair of the man in front blocking the view to cover up the eyes of both Leavelle and Oswald: Leavelle's because he was looking the other way- trying hard NOT to see the shooter; and Oswald's because he was looking directly at him, as if he knew him, and he did. They had a conversation in the hall outside Fritz' office the very evening before. Look at the shooter's neck in back.