I've been thinking a lot about the well-hidden gun between the boxes and the spent shells found in the sniper's nest. And it makes absolutely no sense. If Oswald didn't want to get caught, how did he know he had "x" amount of time to make his escape? If his plan was to try to leave the building undetected or blend in with the crowd [e.g., going down and getting a Coke], he had to have known it would take time to supposedly wipe the gun down [but supposedly leave a palm print on the box - oops!]. He had to know it would take time to carefully hide the gun between the boxes. Yet, he leaves three spent shells in the sniper's nest [yet one of the shells was supposedly bent at the lip, making it unworkable in the gun - oops again].
And if he was a crazed assassin trying to make a statement about what he had supposedly done, why all the subterfuge? If he shot at Walker, why all the subterfuge there?
The hiding of the gun and leaving the shells is illogical and makes absolutely no sense.