Is that the Saudi ‘former person of interest’ kid in lower left corner??? Hmmmm..
This photo is so early in reference to the time of the bombing. If the bomb was placed out in the middle of the sidewalk, and at the time there wasn’t a big crowd standing on the sidewalk (as we see in the photo of those two guys), then the bomb was likely not there long before it was detonated. Otherwise, they risked someone seeing the bag lying by itself unattended and moving it. It’s possible the bombers were hanging around as early as this photo, but it just seems unlikely.