another another act of violence he potentially would want to carry out on his way out. a lot of tension in the city of boston as we wait to find out where this young terrorist may be hiding. bill hemmer is on the scene in boston as he has been throughout all of this. and bill, we wait at this point. bill: yeah. indeed we do and we are in boston s back bay, martha. you know this city well. and you know that normally on a friday morning this place is just bustling with traffic. at the moment we have a few cars and we have a few trucks but that s about the only traffic we have seen. a little bit of foot traffic coming in and around. behind me you have several blocks in boston, massachusetts, that are shut down and closed off and they have been that way since monday afternoon. you can t access it. you can not get in there. a lot of bostonians are coming down droing off various flower bouquets and teddy bears and cards and leaving them near the