I rarely venture into this part of the forum, but surely the circle on the "before" images is in the wrong place here?This is the bag before and immediately after the explosion.
These images were released at the same time as the above FBI image. Unfortunately, the immediately after images have been redacted at the site of the explosion.
Does anyone have the original?
[edit: The bag we are tracking is blown to the bottom right.]
The bomb was placed on the metal grating around the tree to the left and behind the fence.
The white bag on the ground at the bottom of the fence isn't related as far as I know.