Depends. Notice that one of the two figures running away still has on a backpack with a white square. That flagged this for me and shoved it into the "pending box" as far as accepting it outright. The Psychs/PR People in government service (either ours or Israel) are expert at planting false trails. What occurs to me is that they may have become aware of the photo of one of the suspects leaving, with backpack still on, and moved to muddy the waters. The real key datum here is the "suspect" leaving with his backpack on. That clearly demonstrates that he did not leave it behind to explode.