I have to say that these guys are very comfortable carrying explosives if they are the culprits. Only question I have are why is suspect # 2 backpack a different color than in the single photo?
not only do they both look VERY comfortable walking around with explosives(I guess they were not afraid that it would blow up accidentally, probably rigged by cell phone trigger) but if I were walking around with a bomb I would be scared as hell that I would be caught..these guys look like they could both care less..and the guy in the white hat who dropped off the bomb..wasn’t he afraid that someone who saw him do it would say “Excuse me sir you forgot your bag” they didnt seem to have a care in the world, no fear of getting caught