I have no doubt the bag that was photographed leaving the building at 3pm is the same bag that was not photographed in the corner. The bag and bottle also leaving were photographed. As were the shells and rifle. The same rifle that was removed by Day at 2pm. Why is the bag the odd one out?
Did Montgomery first "find the bag"? Seems Johnson claimed he did, as did Montgomery in later interviews. It was so obvious to them it was perfect to transport a rifle......why no photo in place?