Bigraphic Information News Today

>> lets bring in chad sweet, former chief of staff with the department of homeland security also a former cia officer, co-founder and ceo of the chertoff group. also tom fuentes, juliette kayyem here. a lot of information here first and foremost the brothers believed to be from chechnya. lets start with that. >> couple points. one is, if theyre in, fact, students at bunker hill college, theres the student immigration visa data base which will follow things like well know exactly their bigraphic ...

Police s.w.a.t. teams going door-to-door in watertown. theyre asking people to stay home, lock your doors. do not answer your doors unless you see a bona fide law enforcement official outside. >> this is an ongoing investigation. we cant get into details on the descriptions of the suspects or the names. were trying to get information out to the people who live here, that they should stay in their homes, and not open their doors unless police officers are there. theres a 20 block perimeter around...

Around him. theres a lot of work thats being done behind the scenes that the american public doesnt see on going to the residence. right now i suspect his apartment is being forensically checked as well. theres going to be a lot more information coming forward in the next few hours. >> juliette, bunker hill community college, its clear, he may be from chechnya via kazakhstan but he was living, existing here, studying to be an engineer. >> we had always believed that this was a boston-based attac...

Anyone in or out. when all of this started going on, when all of this began, he they were chasing that suspect, there was a witness who saw what -- who saw said it sounded like firecrackers with all the shooting what was going on. we have more information but i want to get back to you guys. >> don lemon in watertown, massachusetts. massive manhunt thats going on right now. we also have been learning from joe johns who well go to in a second that one of the reasons for all the concern is its thou...

Jake, john? >> all right, deb, thanks so much for that. as you alluded to, the associated press right now reporting the identity of the suspects saying they are brothers from chechnya. brothers from chechnya. that again coming from the associated press. we will have more on that as more information comes in. >> at one point before we go to don lemon who is also in watertown, we cant really say this enough. if you live in watertown or the surrounding area and youre turning on your television, you...

Have been from the explosion. suspect number two on the loose. >> one more piece of information. it does appear that suspect number two has been in the u.s. for at least a couple of years. which is interesting. this man, of course, on the run right now. manhunt under way, centered in watertown, but surrounding towns -- people in surrounding towns told to stay in their home, be safe. businesses closed. subways and buses not running in and out of boston. amtrak not running. all of the local colleg...

Other suspect went to bunker hill community college. the younger brother, still at large, thought to be in watertown. the two came from chechnya, stopped in kazakhstan before coming to the united states. >> the older posted on the facebook. >> i dont have a single american friend. i dont understand them. i dont drink, dont smoke. waiting for more information on what exactly motivated them. were picking up clues as to what was going on with them. most importantly for people watching right now. wa...

Police helicopter up in the air. happened quickly, and the amount of presence that got to this scene, it was absolutely timed to the smell of smoke that we ourselves just experienced. so, again, a lot of activity. but, jake, i want to -- i dont know whether you have this in the system, but i want to update you on a couple of new pieces of information that we have received and have been cleared in his profile, the 19-year-old, the white hat man, wrote his world view is islam -- were being moved. ...

With the utmost caution and unprecedented in modern history. >> there is a lot going on, were getting a lot more information right now about the two suspects. one dead, one alive. this information coming to us from deborah ferrick who joins us from watertown. whats the latest? >> reporter: to update you, they are two brothers, the two men, the two suspected marathon bombers, two brothers believed to be 26 and 19 years old. we have their names, not rele e releasing them right now. they fled chech...

Boston by bus or by train. and even some sections of amtrak between boston and surrounding areas have been shut down as well. you see the large presence there. the live pictures on your screen of those tactical units in and around the watertown area. jake? >> all right. don lemon in watertown right now. in some ways at the center of this investigation. but its clearly grown much larger with public transportation in and out of boston being shut down and people in surrounding towns being told to s...