Redundancy in the system in new york city. they are tracking before the attack, this person wearing a safety vest, a neon hard had. they will be finding that person if you wore that right up to the attack. and afterwards, even if he discarded it, they should see it in subsequent stops, streets, store front, cameras, they will see. it it will have an imagery record of this guy doing this. and, boy, stephanie, do we have a forensic package here for prosecutors. you bet. the gun left behind, the gas mask, the gas canisters left behind? a plethora of evidence for prosecutors to tear into, dna, fin...