http://www.youtube.com/watch?v=-iGSaVyPy0k&feature=player_embedded Please watch this brief video showing a shot of the brothers before the blast. Dzhokhar backpack is clearly white, and seems smaller than the blast backpacks. I know this is an AJ video but it is FBI footage of Dzhokhar and it is edited to show the shots with a white backpack. I do not believe this is photo-shopped even if I don't buy everything Alex is saying. Shot is from Atlantic wire showing the same thing, a white backpack. Can someone debunk the theory that since the backpacks don't match it makes it highly unlikely that the brothers were the real bombers. I heard CNN ran a brief article claiming that Dzhokhar stuffed the black pack into a white one, but based on the sizes that doesn't seem possible, and I can't find a link to that. Furthermore we would have been able to see pieces of the white backpack under the black if that were the case. Are there any images of exploded white backpacks? Can anyone explain Dzhokhar's white backpack?