clearly, police paneand fbi age and everybody involved here have to find this guy. they're driven not only by the necessity of what happened at the boston marathon but the necessity of the moment, having lost one of their own, which will drive them even further to make sure they get him. but how, chief timoney, how do you lock down an entire swath of land? >> well, i mean, i've been involved in situations like this. so usually what you're going to do is use loud speakers. especially when daylight hours come. my sense is everybody is awake in that neighborhood. you had the young student on before where a bullet went through his bedroom window and almost hit him. the people in that neighborhood are aware. the police are just re-enforcing. i can guarantee they're watching msnbc, they're watching other television, listening to radios. they're getting the message to stay indoors. the only thing they can do by coming outdoors would be to complicate matters. we saw one gentleman earlier, obviously an innocent guy, who wound up having the police handcuff him because you don