let's go back to clint van zandt. nbc's crime analyst. and former fbi profiler. as you start putting things together -- i think we may have lost clint -- clint, are you hearing me? >> yes, i am. >> as we put together all of these pieces, i know it is impossible for you to know exactly the direction in which it is going, but your sense of who these guys were, these brothers, one of which is dead, and the capacity for what they've not only done but could do, can they pull this off alone? because there's talk of accomplices. there's talk of looking to see if they may have had some sort of assistance. can they do this kind of carnage, just two men? >> well, the answer i think alex is yes. two men can build these devices. reaplize it was in 2011 that a former u.s. soldier built two exact similar devices based upon the plans he found on an al qaeda website. he built two bombs and he was going to use them against u.s. soldiers at ft. hood. the authorities stopped him before he did it. he was one man working under the inspiration he got from the magazine, buying all the p

. >> clint van zandt, do you think that was on purpose to alert whoever the suspect was in this case that things weren't going to be that hot for them, it was time to make a run? we'll see, of course. >> yeah, we'll see. does being would be a good time if he was in one place to start moving but chris, one report we had from the local affiliate was that dozen shots. that's about the capacity of the magazine from a semiautomatic pistols. so the big concern that i have right now is this over abundance of manpower and fire power. this takes very disciplined on the part of law enforcement. you want to get there, you want to get a perimeter around the area but you only want a few designated officers or s.w.a.t. teams to deal with it. the last thing in the world we need is crossfire going at the same time so whoever is on the on scene commander has got to be real disciplined right now with what they have. worst case scenario we could end up shooting somebody we don't want to shoot. >> what do you make of the atf? we just saw someone putting on a bulletproof vest? >> we have over 30 federal

former fbi analyst clint van zandt. good morning to you and thanks for being with us.e have you on camera which is fantastic. what do you make of the bomb part? we're getting some of those pictures right now. very simple things. the pressure cooker and other items. does it tell us whether it's domestic or foreign in origination at all? >> well, it changes our viewpoint, i think, richard. initially when these devices were described as small ieds, i think a lot of us thought as pipe bombs which very much have a domestic flair to it. now when we hear about these pressure cooker bombs, number one, we know that they've been used internationally, places like afghanistan and pakistan for 50 years. we know that one went off in india two months ago and killed and injured dozens, literally hundreds of people. we know that a u.s. soldier was convicted two years ago of assembling such devices that he was going to use to attack a restaurant where u.s. soldiers hung out. and we know that recently an addition of "inspire" magazine, the al qaeda magazine, had a formula, had a plan for

clint van zandt, this is ever-changing. the interesting part of the conversation you and i just both heard, was that law enforcement officials saying if you knew what we knew about this location, you wouldn't be this close. ha do you surmise from that? >> well, i surmise from that that they have reason to believe there's additional explosives at that location. i mean weapons i think are obvious, but explosives could very well be at that location. but, look, from a negotiations from a law enforcement perspective, there's no shots being fired. there's no bombs going off. so what looks like nothing going on is exactly what law enforcement wants it to be at this point. >> this new video coming in from cambridge, massachusetts, in front of the home of one of the suspects. we've been in this discussion before. the concern about booby traps, we were looking at the video as they were looking at cars in front of the suspect's home. as they go from location to location and there's three crime scenes at the moment, that concern of an

>>> back with me now is former fbi profiler clint van zandt. clint, what's going on in the minds of these two guys right now? nour you're a profiler? are they feeling the pressure? wherever they are, what is going on in their minds? >> realize, al, this is was a carefully planned event. they built the devices, they knew where they were going to put them, they knew how they were going to carry them, come in, come out again but they never, ever planned on this level of technology. they couldn't understand. nobody can, this level of technology that can be employed to identify two people out of a million and say, these are the two we're looking for. so they heard yesterday, al, that there were pictures out but new york posts or some other newspapers ran pictures that may not have been these guys, may have been somebody else. so then you've got this ambivolence. okay, they've got pictures of us but the pictures we're seeing are the wrong guys. so we can relax. we've got the right guys. >> let me hold you right there. i want to show you the sound bite

we're back with james cavanaugh and former fbi profiler clint van zandt.n we first started covering this, they talked about accumulating evidence, painstakingly and developing from the evidence fragments, information about how the bomb was put together. now it's focusing on the face, the person. it's going from a ground game, if you will, to an air game. i'm asking -- it seems to me if an air game, like any sports, is more dramatic or it's a faster game. is this the way they are going to trying to find the person because they've already proven with their video technology. they don't have to make the case anymore. they just have to find these guys. >> they are going to have to make the case, chris. there's multiple investigations going on. we call it multiple track investigation. i guarantee there's a ton of investigators still running down the bbs, ball bearings, black powder, pressure cooker, the timer, the batteries, all these things are being done. there's enough agents and investigators involved that they would segment them and have them doing dinner t

thank you, clint van zandt, thank you, phillip. please join us again. >>> much more on boston bombing coming up this hour. when we return we're going to get into the law of this case. dzhokhar tsarnaev was formally charged today. he'll be prosecuted through the criminal justice system despite republicans who say he should be treated as an enemy combatant. >>> later, the russian connection. we have new details about the older brother, tamerlan, and his six-month trip overseas to russia, that area, as he became increasingly more devout in his religion and radicalism. >>> here in washington, the marathon bombings have already started to change the debate on things like -- you knew this was coming -- immigration. >>> finally, life started to return to normal this weekend in boston. i was up there as the slow healing begins. this is "hardball." as we say up there, "hardball." the place for politics. [ male announcer ] you are a business pro. governor of getting it done. you know how to dance... with a deadline. and you...rent from natio

clint van zandt and michael leiter stay with us. much more, including former new york mayor, of course, rudy giuliani. he's going to join us here. now what we're learning about the background of the two suspected bombers, as i said. the two brothers. this is "hardball." ♪ [ male announcer ] book ahead and save up to 20 percent at doubletree.com, so you can sit back, relax and enjoy. doubletree by hilton. where the little things mean everything. [ male announcer ] from the way the bristles move to the way they clean, once you try an oral-b deep sweep power brush, you'll never go back to a regular manual brush. its three cleaning zones with dynamic power bristles reach between teeth with more brush movements to remove up to 100% more plaque than a regular manual brush. and even 76% more plaque than sonicare flexcare in hard to reach areas. oral-b deep sweep 5000 power brush. life opens up when you do. i don'without goingcisions to angie's list first. oral-b deep sweep 5000 power brush. you'll find reviews on home repair to healthcare

with us former fbi profiler clint van zandt. the governor said among other things he thanked the community for their -- for their staying calm and heeding law enforcement advice and they also mentioned -- sorry. going back to the press conference. let's take a listen. >> we're obviously way behind. it's indicative of the leads we continue to run down here and things change, they change quickly and sometimes we have to change direction. i want to begin by saying we are progressing through this neighborhood, going door to door, street to street. well over 60 or 70% of what we want to cover up there. we do not have any development to tell you in terms of that search up there. there has been no apprehension at this point. the second thing i want to talk about briefly is this afternoon, there will be a controlled explosion, if you will, by some of the explosive ordinance folks in cambridge at a house we have secured earlier today. it's done out of an abundance of caution. it's done for the safety of the law enforcement officials that

joining me now is brian bender, national security reporter for the boston globe and clint van zandt. what would you think would have caused such a dramatic shift? >> i think there's a number of things we're probably going to find out in the 26-year-old brother's life, al. i think that he had a confrontation with a former girlfriend. she accused him of assault. he was arrested for that. that may have been the basis why he, unlike his brother, was denied citizenship. he was denied the opportunity to box for the united states in the olympics. i think there were a number of things in his life that really didn't go his way and like a cult in some cases or sometimes a religion or the way it's presented for others, there are individuals that will embrace you, bring you in, tell you you're a good person, give you an a philosophy on religion and then maybe turn you into a bomber. >> but when you look at this, brian, the fact is he was always -- his family was always muslim and like any religion you can have people that become extremist because obviously everyone in islam did not hold the same

. >>> joining me now is former fbi profiler clint van zandt. clint, thanks for coming on the show tonight. >> good to be with you, al. >> clint, tell me what do you -- can you share with us would be going on at this point in the investigation? it's very early but we know that the fbi is either there or on their way. what can you tell us that you think would be going on right now in the investigation? >> well, you've got both. number one, the fbi would have had a team assembled already. there would have been fbi and other federal agencies. additional fbi bomb techs are coming in from new york and other places, too. one of the things they are trying to do, al, as your guest indicated, trying to identify the type of device. we've heard it referred to as small ied, small improvised explosive devices. you and i spoke back in 2011. we remember the martin luther king parade in spokane. that device was a six-inch pipe bomb filled with black powder and fishing weights. he had connected that to a car starter, something that you would start your car in the

joining me now is former fbi profiler, clint van zandt. anks for being here. >> good to be with you, al. >> what kind of information can we learn from photos like this? >> well, one of the things that the fbi will do is they'll take photographs of the actual blast area. they'll superimpose it over a photograph like you just showed us to try to suggest, did that blast actually originate from that bag or was it left, right or behind it? so we've got -- we've got a baseline of where the explosion took place. any other photographs will be compared against those two explosion sites, number one, to see if a bag had been there. number two, we'll be looking for someone who carried such a bag. remember, al, that the fbi describes two different black nylon bags. if you think about -- if you think about these pressure cookers, a friend of mine, larry johnson, former cia, commented that these would weigh about 20 pounds each. that's a lot of weight for somebody to carry in that area, al. >> now, what kind of damage can these type of bombs do, these pre

i don't think we have a connection with clint van zandt right now. little bit of technical difficulties. we're going to try and reconnect with clint. but for recapping for all of you, this all went down last night. really shortly after 9:00 p.m. was when dzhokhar tsarnaev was taken into custody and the result was quite extraordinary. people were cheering in the streets. i think probably cheers all over this nation for the end of this really a reign of terror for some 24 hours for the city of boston and its suburbs. but also, really since monday. let's go right now and talk about what the investigators are going to do as they get to the bottom of everything. the next move with mark rossini, he helped create the national counterterrorism center. thank you for joining me all the way from paris. we appreciate that. let's talk about what will happen with dzhokhar tsarnaev, now going to be questioned by the elite 450i value detainee interrogation group made up of a bunch of high-ranking officials, fbi, cia, defense department. beyond the obvious of why, mar

but al -- >> you know, clint van zandt and james clark and -- don clark and james cavanaugh, stand by. we'll bring you back later in the show. >>> just who are the suspects? we're learning much more about them on this extraordinary night. keep it right here on msnbc. both tylenol and bayer advanced aspirin are proven to be effective pain relievers. tylenol works by blocking pain signals to your brain. bayer advanced aspirin blocks pain at the site. try the power of bayer advanced aspirin. governor of getting it done. you know how to dance... with a deadline. and you...rent from national. because only national lets you choose any car in the aisle... and go. you can even take a full-size or above, and still pay the mid-size price. this is awesome. [ male announcer ] yes, it is, business pro. yes, it is. go national. go like a pro. >>> who are these suspects and what could have happened to them that made their lives take such a drastic turn? the two arrive with their family here around 2002 to seek refuge from the war in chechnya. the older brother was an accomplished boxer and studied f

joining me now is clint van zandt. good morning. >> good morning. >> one of the things we learned about the pressure cooker bomb is that al-qaeda put directions for building one on its most recent edition of inspire magazine. they can also be found on the internet, but neither al-qaeda or any other organization has claimed responsibility. would that lead you to believe that is a lone wolf or disgruntled domestic suspect as opposed to an international terrorist? >> i think you have to keep all options open. it could be a hybrid. take for example in 2011, a former u.s. soldier was arrested in the area of ft. hood texas, the same area where major nadal hasan committed that terrible act on the military base. this young soldier was arrested because he was assembling two pressure cooker type devices that he was going to target on a u.s. military. the way he was arrested, the same gun store where major hasan bought one of his guns, noticed a large sale of black powder to this young man. they told the authorities, the authorit

clint van zandt, thank you so much. >>> nervous investors looking for fallout. the selloff continuing overseas this morning. weak chinese economic data sparked monday's fall. and later the bombings in boston drove up investors' fears. police and military presence ramp up at travel hubs in major cities. in boston, governor deval patrick saying the city is open, but it will not be business as usual there. and thanks to marathon runners who ran straight to the city's hospitals and donated blood, massachusetts general met all of its blood needs yesterday. however, they are encouraging more donations beginning at 7:30 a.m. eastern this morning. >>> "early today health" is brought to you by vagisil ph balance wash. >>> after the break, more on the attack at the boston marathon including what authorities can do to help keep us safe at major public gatherings. this is "early today." >>> in the wake of the boston bombings federal investigators are on the ground combing through evidence to learn more about the explosive devices and ultimately who is behind this attack. wh

while you keep your investigative options wide open. >> okay, clint van zandt and adam lankford.hank you. >>> up next, we'll talk to the boston herald about the significance of the day of the attack. and do you know your... blood type? a or b positive?? have you eaten today? i had some lebanese food for lunch. i love the lebanese. i... i'm not sure. enough of the formalities... lets get started shall we? jimmy how happy are folks who save hundreds of dollars switching to geico? happier than dracula volunteering at a blood drive. we have cookies... get happy. get geico. fifteen minutes could save you fifteen percent or more. angie's liat angie's list, i autyou'll find reviews. on everything from home repair to healthcare written by people just like you. if you want to save yourself time and avoid a hassle, go to angie's list. at angie's list, you'll find the right person to do the job you need. and you'll find the right person quickly and easily. i'm busy, busy, busy, busy. thank goodness for angie's list. from roofers to plumbers to dentists and more, angie's list -- reviews you

joining me now is former fbi profiler clint van zandt. gotten this information from pete williams at the top of the hour regarding the components used to make this explosive. or these explosives. a pressure cooker bomb. the explosive charge could propel, according to the information, shrapnel and fragments to speeds of 3,300 feet per second. three time more than a, the speed of a .9 millimeter. the components alone, what does that tell you? >> we've known about these pressure cooker bombs for at least the last dozen years. we've seen them used in pakistan, afghanistan and other places like this. iuds. it has been a popular device there and there is a lot of information on the internet, too. but the interesting thing and i'm sure you know, too, in the failed new york city bombing within the last couple years, that individual who was going to blow his car up in time square, he used a pressure cooker device. so one can say, well, that has a middle eastern type of flare to it. it is something we see used by middle eastern terrorists but it is

profiler clint van zandt and hostage thoeshtor for the atf and criminologist james fox and john j college science professor. let me begin with nbc's katie tour who has been live on the scene. tell us where you are and what you are seeing. >> i'm in watertown. i don't want to give you too much about the location because the police have asked us not to give too much out about the efforts. somewhere in watertown behind me here we believe there is a standoff going on. police believe they have cornered one of the suspects, the guy in the white hat. this is where things came to a head if you call it that last night. early this morning when police gave chase and they cornered the two suspects. the black hat and the white hat suspects and encountered a shootout. in that, the suspect in the black hat was shot dead. his brother with the white hat managed to flee the scene and he is believed to be somewhere in watertown ever since. just in case the city of boston put down a lockdown for pretty much everybody. asked everyone in the suburbs and in boston itself to stay inside. this is not just for the

i want to bring in clint van zandt, former fbi profiler and nbc analyst who joins us on the phone. i don't knf we've covered sin i la these certain notound likede variety crinals. we wan not jump to conclusions without the evidence that suput the eyewitness tt we spo explosive devicehewere throwinghem police.rsions,hooting at the fromhat you've heard from him, does tha off any additional inght as to whether this may can tell you it's bos highly unusual for any type of street criminal t descred as a grenade or any type of explove device. and, of course, we've h one witness suggest there was even a pressure coor type of device that was in theandsf the spects. at this time, there seems toe more eyetness informioth would link it t the suspects being sought as oed to as you incate, thgarden variety iminals. the challenge right now for law enforcement,ell, it's a chlengfor the media to understand what's going on. thehallge for law enforcement is should they have one individual icustody. you either have this shooter armed with explosives in a hicl or on ft. ther way capable of hijacking a

clint van zandt is a former fbi profiler. james cavanaugh is a retired atf, alcohol, tobacco and firearms special agent in charge. let me start with clint. i want to run through the evidence with you. we have now not a suspect, but there is a picture of someone putting down that bag. we know it involved a pressure cooker from yesterday and a circuit board. we know from today it involved a battery pack. where are we? what's it all add up to now as you see it, clint? >> number one, we've got a lot of good forensic evidence. i've had the good fortune to work with them before on cases. between the fbi and atf there's probably no better lab. as jim will tell you, when a bomb goes off, it may get blown to bits, but those are bits that we can recover. that his agency and the fbi can put together. they can understand the device. and perhaps find a signature aspect to that. so we've got a forensic investigation that's going on as far as the bomb and where it went off and what it was composed of and who may have built it. we also have w

joining us is clint van zandt. he's a former hostage negotiator.ases from the oklahoma city bombings to the unabomber. >> welcome back. >> good to be with you. >> based on everything we know about the bomb that was used, what kind of person did this? >> even though the bomb itself has roots in asia, the middle east, this is a popular device on the internet we know for example in 2011 a former soldier at fort hood built two similar devices that he was going to attack the military that major nadal hasan did. it would be easy for one person to do this. easier for two. no indication that it's a group whatsoever. >> why don't you think anybody's taken credit for this? what's the point if you're going to do this and not make a statement at some point that's obvious? >> for example the anthrax centers. the fbi believes the scientist who committed suicide that did that never said look what i did. we got these letters that went out, but no one person, no one organization took credit. sometimes for some people the best secret is knowing something that nobody

let me go to clint van zandt. he's standing by. clint, you know, you're an fbi profiler. a lot of this, the evidence, the technical things that are happening right now is it find out who could be responsible. and i was asking evan, the world has changed, for example, since the atlanta bombing. clint, you have cameras on every corner these days. is that the first source or one of the major sources for the investigation? >> yeah, well, they've got a lot going on. number one, they're trying to find out obviously who's responsible. could this be simply a -- i don't say simply, but could it be a lone wolf? that's going to be the challenge. if it's just one individual perhaps with no other type, group affiliation, whatsoever. is there any chatter on the internet that they've picked up? who claims responsibility for something like this? and, again, as you're suggesting, not only do we have government, state, investigative cameras, but we have all the participants, all the people watching. investigators will be trying to get ahold of their cameras, iphones, film, to try to see wh

clint van zandt, was a profiler for the fbi. he's with us now. it's like the two planes hitting the world trade center. once the second hits you know it wasn't an accident. we have the third bombing at the jfk library miles away from here in central boston. >> time may be the factor that helps us determine, are there nr devices out there? you know from your experience reporting these things, many things we'll have an initial one or two explosions then there will be one time at a later position, a later location, either to divert attention away or perhaps to kill or injure first responders. with this many devices, at least three, and the level of sophistication that it would have took to built these, we have to at least, you know, consider the lone wolf terrorist as well as is this something inspired by some type of international group? when we look at that white smoke, chris, that white smoke from that first device, that could be indicative of a low-order explosive. in essence, not like the military c4 or plastic explosive we hear about. nonethel

thank you, clint van zandt as always. thank you, larry johnson. >>> let me give you an update on the victims of this attack. as we said, three people now have been killed and more than 180, more than we thought, were injured yesterday. with me now, dr. william mackey, che chief of surgery at tuft's medical center. thank you for joining us. i was looking yesterday, the first part of the tragedy that struck me was the number of hospitals up in the boston area all with so many patients now in serious problems. serious threat to their lives. what was it like yesterday? what's the situation in your hospital? >> it was extremely hectic right from the get-go. the event occurred about 2:50. by 3:30 or a little bit before, we had victims rolling in. we got about nine people from the scene within about a ten-minute period. eight of them had pretty serious injuries. four of them immediately limb threatening injuries. they were triaged through our system quickly and within about 30 minutes, 4 of them were in the operating room here.

joining me now is clint van zandt. clint, thanks for being who are. >> good to be with you, al. >> clint, put yourself inside the office in boston tonight. >> yeah. >> where are you and what are you doing and what is the team doing? >> number one, you take a deep breath and realize that there are 60 agencies involved. some of those in law enforcement may be some type of source for the media. the last thing that investigators want and you and i are part of the media, but the last thing they want is a media feeding frenzy. we only have to think back to richard jewel and the olympic part bombing and the absolute foot race that took place between the fbi and so-called investigative reporters trying to track down richard jewel, his house, his mother, all these other things. all that does is screw up an investigation. they'd like the pro vsh yell cone of silence put over the investigation. they'd like to identify the suspect, see if we can limpg him to the forensic evidence, build a case, make an arrest, get him in jail and t

joining me to put this into perspective, clint van zandt. you make of this, the fact that hammer ltamerlan more talkative of two, that he dresses in a manner that would befit a stereotype of someone who is becoming religiously involved in islam and the like, and then a month ago changes his outlook. >> yeah. i think he's the one we're trying to understand. i can understand the suspected terrorist 19-year-old we have in custody right now. he's described as almost being a puppy to his older brother. his brother not only is the older brother but he's the father figure. so, you know, i got that. but for the older brother, you know, part of this, alex, may date back to 2009. he had an argument with a girlfriend. you know, he was a boxer, and his girlfriend would come to the ring and she would kind of push him and shove him. one day he just allegedly shoved her or hit her. she filed charges against him. when he filed an application to become a u.s. citizen because of that domestic violence charge against him, that was part of the reason that he wa

i would like to bring in former fbi profiler clint van zandt. and clint, we've been following this together all night. given what you've heard about these individuals have been explosives, the way they engage law enforcement in the extensive fire fight, go you have suspicions these are, in fact, the suspects that police have been looking for in this boston bombing case? >> well, this could be, i think, one or more of the suspects. what we have to realize too is we have pictures of the two primary suspects. there may be other individuals involved, at least providing some type of aid and comfort to these two individuals. so whether the person they have in custody is an exact match to these photographs or not, law enforcement right now is trying to sort through this. as you probably know, pictures very released by the fbi showing the two primary suspects together, it would be a relatively simple task with the person they supposedly have in custody to get facial photographs with an iphone and send those to investigators who have good copies of the pi

i want to bring in cliff van zandt former fbi profiler. clint, you've been hearing everything. my apologies there. you have been hearing everything about learning more and more little bit about who these brothers are. what kind of profile would you be putting together right now? >> well, number one, we all have to admit it is amazing to get this much information this quickly. you look yesterday we barely had two photographs. today we've got the full pedigree basically on these guys right now. and i agree with some of your recent comments. what we're trying to understand is -- are these just two individuals just decided to do this terrible act or are they part of some type of cell where. were they a sleeper cell that was put into place here simply sitting here waiting to act out. we know one of the individuals on his social networking site made negative comments about russia. we also know that the russian president is watching this situation very close because, obviously, they're going to have the olympics and he's going to have to deal with separatists who, unfortunately, have

nbc analyst michael leiter was director of the national counterterrorism center and clint van zandt is a profiler. all of this is a key related, battery pack, circuit board, news about the pressure cooker. a piece of it discovered. so much physical evidence and then the picture taken by the video surveillance camera at lord & ta are lo, we've confirmed, it's a picture of someone putting down a black bag, some sort of shopping bag, and then walking away from the bomb site. >> well, it's been a very good day, chris, and it's interesting as we started this before the information came out, the refrain we're hearing is why do we know so little at this point and the fact is, as we've said over and over, it takes time. now, what you just described is two legs or three-legged stool. you've got the forensic evidence from the blast site. that's helping them understand the bomb and how it was made. potentially you can trace things there. the secon leg of that stool is the photographic evidence and videotape which is just invaluable and then the third leg of that stool, which thankfully is not bei

. >> joining me right now is clint van zandt, former fbi master profiler and hostage negotiator. int worked on many major cases from the oklahoma city bombing to the unabomber and now is a crime analyst for nbc. clint, thanks very much for weighing in on this. let me ask you, in terms of this individual that we are focused on, do you expect that he is wi hiding out, injured from the gunshot wounds last night, or do you expect that he could what's your take on this? >> there's probably three different ways that this could go, at least. remember in that shoot-out last night, his brother was hit multiple times, to include fragments, perhaps, from some type of a grenade or incendiary device. so it stands to reason if his brother and he were both in a shoot-out and his brother was shot so many times, he may have been hit too. so law enforcement, as they look in this 20-block square area that save searched about 80% right now, they're looking for perhaps he's wounded and crawled under a house some place, perhaps he broke into either an empty house or he's in an apartment, holding hostag

hostage negotiator at the atf, as well as special agent in charge and former fbi criminal profiler clint van zandt. james, clear up something for me based on what we just heard. they're no longer looking for a third person. dzhokhar is the only person they're looking for. some folks were being allowed to leave work and go home. we also heard from governor patrick people should stay in their homes. putting all of these pieces together in your opinion, do they have dzhokhar cornered or do not know where he is? >> well, i think they think they have him in an area near watertown that's a block or some houses you keep seeing on the feed there. they think he's in there. they've set up a heavy perimeter there with the s.w.a.t. and srt teams and doing a methodical search. fact there's no third person, s.e., is really a good point. i think that takes the tension down a little bit. >> yeah. >> because then we back up to the bombs around the city. they have this bomb isolated that they keep talking about they're going to do controlled detonation on. that bomb is not going to hurt anybody. the bomb technician

>> clint van zandt, james cavanaugh, thanks, gentlemen.ng you back later. >>> coming up, tensions and caution rise as another huge city prepares for another big marathon tomorrow. you are watching msnbc. ♪ lookin' good, flo! feelin' good! feelin' real good! [ engine revs ] boat protection people love. now, that's progressive. call or click today. ♪ [ indistinct shouting ] [ male announcer ] time and sales data. split-second stats. [ indistinct shouting ] ♪ it's so close to the options floor... [ indistinct shouting, bell dinging ] ...you'll bust your brain box. ♪ all on thinkorswim from td ameritrade. ♪ [ applause ] >> thank you! >> thank you! >> cheers in watertown, massachusetts, after the capture of the boston marathon bombing suspect last night, adults, children lining the streets there. it was an impromptu parade of sorts. we will go live to watertown for a live report coming up. >>> meanwhile, the london marathon, one of the largest in the world, will be run tomorrow. in a show of solidarity, runners will observe a moment of silence