The stack of cartons that were positioned about two feet in from the window opening appear to the viewer differently because of the differing line-of-sights between where Dillard was in the car and where Powell stood when they took their respective photos. Nothing was moved between the taking of the photos, including the small carton whose upper corner is seen just above the window ledge.
Camera-left: Carton on window sill whose upper corner was captured in the photos. Box with gouge/scar rested higher and more inward than box on sill. Box with gouge/scar was thought to have served as a rifle rest.
Camera-right: Stack of cartons positioned about two feet in from the window opening.