That "display" was meant not show images but not to show them, to make sure that you couldn't see anything. It's not that it happened to come out dark just just because it did, it's that wicked people were behind the HSCA investigation, and their goal, like the Warren Commission, was to railroad Oswald and hide the truth, including Oswald in the doorway.
You, Backes, are the intellectual descendant of these people, except that you are even more stupid than they were. This very collage is a smoking gun of evil and malfeasance. You don't have to be brilliant to see it. You only have to be average.