almost like puting a noose around watertown hoping to contain this individual, hoping that he hasn't slipped out. they feel that he is here. there are police staging various areas. and you can see an abundance of many blue lights with the cars just passing, they are communicating with each other and connecting, but they are definitely trying to contain this area, really keeping it to a partial lockdown, a partial frozen zone' zone here in watertown. >> deb feyerick in watertown watching things unfold. jay tapper here, you have new information on what they are telling people in and around the watertown area. >> that's right. we have been saying for hours now if you live in watertown to stay in your homes, you should not answer your door unless it is a clearly identified police officer. suspect number two in the boston marathon terrorist attacks is