in the hunt for david sweat? joining us now to talk about that is retired nypd detective sergeant joe jacalone who trains law enforcement officers. i have so many questions for you. first of all, if the dogs aren't picking up the scent, the blood hounds are not picking him up and they haven't spotted him and there are all these people out there, what does that mean about where we are in this search? >> it means sweat might not even be there. they have no dna, there's no dogs there's no air support today. this means to tell me that i think they closed that perimeter and they're not finding what they wanted. >> so where do they go from here? >> well, like everything else going to be thrown back on to the public. hopefully they see something and see how desperate sweat gets. i mean if he gets as desperate as matt did, it looks like they might have split up at that point and maybe sweat just didn't want to deal with him anymore and they're on their own. or maybe they had an argument. we'd like to get him alive because he has a lot of information that we want to know.