Do you believe Sitzman's story about a young black couple sitting to her right, behind a wall, near a bench?
The nearest witnesses to the picket fence, according to her, ran back there after the shooting, immeadiatly. Fleeing to safety into the carpark. And Bowers missed it or at least could not explain it properly.
I believe her. The couple, the smash of the coke bottle that distracted her from the horror she just witnessed in the limo and where she saw them run to. They dissapeared and Sitzman wanted to see where they went. Bowers could not explain it because a parade on Elm Street that he just could not see did not justify his full attention.
Also.
"I could see the back of the fence" and "One man dissapeared behind the fence".
Your back, my behind.