dropdeadfred -- this is going to be a very interesting 'big data' exercise -- with all the photos and videos they're collecting, for each bomb they're at least going to try to take all the photos and videos and integrate them into a virtual 3-D hologram recreating the bombing scene from well before the detonation through and following the detonation -- won't be easy to do and the resulting holographic recreations won't be perfect, but I'd bet they'll be surprisingly good (and reliable), and will quite clearly enough capture and show whoever left each bomb, in the act