On the left below is an image of Nat Pinkston from Joseph Backes, and in the center is the guy who was acting cop-like after the Charge in the Garage. And on the right is Detective RL Beck.
The odd man out is Beck on the right. And notice that he is wearing the trademark white stetson hat that Fritz' men wore. Don't try to tell me that there were two guys who looked as much alike and dressed as much alike as the man left and the man center, such that if they ran into each other, they would have thought they were looking in the mirror. I don't accept it. That is Pinkston, Pinkston, Pinkson at the Oswald killing.