distill down to a couple of different location where is these guys might be, anything from a credit card transaction to a phone call could help. but there are things working in law enforcement's favor right now. nightfall is law enforcement's friend. they have the equipment. these guys had no time to plan this. this wasn't some sophisticated prison break where a bag of equipment was waiting for them at the end of a long tunnel. they have night vision, they have forward-looking infrared, they can get thermal imaging out there. there's a good opportunity for law enforcement to leverage that nightfall and the lack of light to benefit them. another thing is their lack of planning in this. there seems to be an impulsively violent act, unlike the prison break in new york where they had some time. i don't think it was planned. these guys at some point are going to have to drink and eat and change clothes and they don't have any of that right now. >> harry, i think back to the most recent well-known manhunt is what happened in upstate new