tsarnaev and his mother.an tsarnaev and his mother. according to the house foreign affairs chairman royce, she's a person of interest. we have absolutely no idea as to her involvement, if there was any, but obviously law enforcement is looking very closely at her. would she fit the profile? she was estranged from her husband, is now back with him, but obviously if involved wasn't doing anything herself, would have been more leading and manipulating. >> reporter: there is certainly evidence of that in other conflicts where women have played this kind of role. she is perhaps older than the sort of average black widow age, somebody sort of perhaps in their late teens, their early 20s, somebody who is relatively vulnerable in society. zubeidat tsarnaev doesn't really come across as somebody who is vulnerable. but certainly, she has come across with strong opinions and it is people like that who have been influential on men in their families in the past erin. >> nic, are women suicide bombers more effective than m

that we can expect to see tsarnaev in court. john? >> our thanks to tampa brown in massachusetts where tsarnaev is being held now. we want to go to russia right now. we have new information out of russia. nick what is the latest out of moscow? >> it is a complex chain of events here, but it leads to a village at dagestan last night where at 5:00 in the morning russian special forces killed two militants they are linked through their own investigations here, tangent links between them and tamerlan tsarnaev. tsarnaev was linked to a man off his youtube page. we don't know if they met, but tamerlan was interested in his activities. that man was killed in december, but in his group are a number of other militants. one of them was killed last night by russian special forces in dagestan. they surrounded the house he was in. there appears to be a standoff and quite a violent end. we know these men were linked, not only have we seen pictures of them hanging out together in the forest, you can see some of these pictures here. we also have seen

the tsarnaev brothers took off.nter with police in watertown came soon after, when tamerlan was killed. professor fox says given the information the brothers planned an attack in new york -- >> were it not for his action, his behavior, his composure, his wits about him, who knows what would have happened. >> reporter: but professor fox says the victim doesn't consider himself a hero and is still nervous, because he knows he may well have to recount the entire episode in court if and when dzhokhar tsarnaev goes to trial. erin? >> brian, thank you. >>> now i want to check in with anderson cooper with a look at what's coming up next on "ac 360." >> remarkable story by that guy danny. >>> we have new developments on the boston marathon bombings. we'll bring that to you on "360." susan candiotti with late reporting on how the brother allegedly made the explosive devices and why authorities are combing through that boston landfill. also, new details on the shadowy figure known as misha who pushed the suspects towards radi

she's the widow of tsarnaev.ects of our case. how interested do you believe, the fbi is in getting whatever katherine russell knows? >> well i think what they'd be looking for, for sure is if he was practicing with explosives ifwy he went out in some rural area and was working with the explosives then he might have clothes, shoes, jackets, back in the home that have the powder residue that matches the evidence used in the boston marathon bombings. key thing. >> we did see some dna evidence carried out. it was listed as dna taken out of the home today. >> that would be his skin or hair particles on the clothing or other articles that would be there to say that is his clothing and he was in that home. and if they find other material on that clothing it would link him to it. >> the russians have now given a summary, shall we say, of that phone conversation they intercepted between the mother and, we believe, tamerlan tsarnaev back in 2011. they didn't give it to the u.s. at that time only now. why? >> i think the ma

tamerlan tsarnaev's wife is there. investigators are asking how could she have not known about the bombs? and we'll go overseas where nick robertson has the latest on the meeting today between u.s. officials and the bomber's parents. and joe johns is in washington with new information about what russian officials told the fbi and the cia. some damming details about whether our intelligence agencies may have dropped the ball. i want to begin with deb in boston. deb, what do we know about this visit from the parents? >> reporter: yeah, this is news that we just got. came across a couple moments ago. we're being told that russian newspaper is reporting that the two parents are going to be leaving their homes and coming to the united states. now it's unclear exactly whether we're hearing it may be as early as tomorrow. this is according to the russian news agency. and, erin, right now no u.s. agency has confirmed that they will be traveling here. but it's also, you know, the big question, will they be interviewed by the fb

and they knew a lot about the tsarnaev family.y had associated with the tsarnaevs for many years and they were quite eager to tell their story. as they were telling me their story, misha's name came up and i said that's interesting. did you know him? they said oh, yeah, we knew him quite well. he was hanging around. we didn't -- you know, we thought he was a very nice, harmless guy. we don't understand why the tsarnaevs are saying these things about him. then i asked if they knew his name and they said they did and he lived in rhode island. there's only one person by that name in rhode island. there are not very many armenians who converted to islam. and he confirmed that detail to me when i saw him. again, there's this physical description that matches. when i arrived at the apartment, i almost -- they understood immediately why i was there. i identified myself as a journalist. >> you were able to communicate fully in russian. i'm correct, right? >> we spoke a lot of the time in russian. sometimes he spoke english. he speaks very

now, what about katy russell tsarnaev, the widow of tamerlan tsarnaev in rhode island.erinials over at the house right now. does she face potentially legal problems as well? >> well, she certainly will if it can be established that she had an awareness of the plot and participated in some way maybe by hiding materials in her home or in fact hg intentions. however, i think it's unlikely that that's going to develop. i think she's probably going to turn out to be more of an intelligence resource than a source of hard information in the case. >> obviously they would love to question her. she's got a team of lawyers representing her. we don't even know now all these days later if she's started answering fbi questions. what does tha say toyou? >> well, the fbi obviously feels that she's a source of legitimate information. they're questioning anybody who had a link to both of these individuals, one who's dead and one who now is under arrest. but the fact that she's lawyered up so quickly, there's really no way to compel her to testify unless through some bizarre developments

tsarnaev. in 2009 he was arrested for domestic assault after his girlfriend said he beat her up no last year he openly argued with a preacher at a mosque, telling him holiday celebrations were not allowed by islam. last year he disrupted a sermon by martin luther king calling him a nonbeliever. today marks one week since the attack. from the oval office and around the country a solemn tribute. >> the boston area, most every spot in the city is silent. >> reporter: another step toward normal, boyleston street turned over by federal investigators to the city of boston in the sign of ip ves gags intensity, a tree possibly touched by dzhokhar. taken as evidence. and photos of him, possibly tracking the murder of officer carter. some seriously injured in the hospital, hope. >> nearly all of the patients that have lost legs are already walking the halls with physical therapists. >> reporter: still, grim reminders here just about everywhere. in medford the funeral for krystle campbell. one more step t

tsarnaev.ion to the bombings. stay with us for that. >>> also, an extraordinary moment marking the attacks that occurred one week ago today. you've known? ld n we gave people a sticker and had them show us. we learned a lot of us have known someone who's lived well into their 90s. and that's a great thing. but even though we're living longer, one thing that hasn't changed: the official retirement age. ♪ the question is how do you make sure you have the money you need to enjoy all of these years. ♪ i took my son fishing every year. we had a great spot, not easy to find, but worth it. but with copd making it hard to breathe, i thought those days might be over. so my doctor prescribed symbicort. it helps significantly improve my lung function starting within five minutes. symbicort doesn't replace a rescue inhaler for sudden symptoms. with symbicort, today i'm breathing better. and that means...fish on! symbicort is for copd including chronic bronchitis and emphysema. it should not be taken more t

in the town where tsarnaev's father lives and tamerlan visited just last year. you can see just how intense the violence must have been. in here could be the clearest link yet between one of the alleged boston bombers, and the violence that's been gripping southern russia. a u.s. intelligence source told cnn that tsarnaev brothers' social media accounts are being examined for possible links to extremists in the caucasus, in case they reveal the darkest secrets of boston. why did the bombers do it? now that doesn't mean tamerlan tsarnaev and that militant actually ever met here but they were spending some time in the same town. we're getting a fuller picture, too, of the kind of man who came back here last year for about six months. his aunt telling us that she was surprised at how he adopted the islamic faith in america, how devout he was. how he considered the islamic faith to be the center of his life here. also, how he visited chechnya twice to see relatives during that six-month period, and interestingly, too, that how after his family had left chechnya beca

friends say tamerlan tsarnaev was the leader between the two brothers, one saying dzhokhar tsarnaev was months he saw the brothers come in, sometimes sitting down, sometimes getting chicken and lamb for take out. tamerlan tsarnaev always walked ichb front of his younger brother swaggering looking serious and tough. >> like we do this and we do. he was always in front. and the other one behind him. >> reporter: it may not have always been that way. a lifeguard with dzhokhar tsarnaev at harvard. she says this about the younger brother. >> an effort to create because they didn't see the world quite in the same way. >> reporter: neighbors gave us new information on the broader family dynamic. this is the top floor apartment where the tsarnaev family lived. neighbors say the entire family, parents, brothers and sisters lived here together at one point. one neighbor told us he observed tension in the family when they all lived together. it was at this address where tamerlan tsarnaev was arrested in july 2009 for assaulting his girlfriend. it quotes tamerlan tsarnaev as saying i slapped her. t

dzhokhar tsarnaev.committed a domestic crime in boston and he'll be tried in a u.s. civilian criminal court system. >> right. >> how you going to torture him? >> i mean, you're talking to the guy that supports death penalty for cop killers, terrorists. >> yeah, but how would you torture him? >> i would support, i'm talking about me, if you want to talk to the president of the united states about his policies next time you golf or go play basketball with him, you can ask him. i'm telling you as greg ball, greg ball personally -- >> i understand you are're greg ball. >> you would put me in the room with anybody from the current scumbags to bin laden, i'm telling you what i would do. as far as the policy of the united states, you got to take it up with obama. >> if you start to torture an american citizen for committing a domestic crime in america, you are crossing the rubicon. >> can i ask you a question? what would you do if you were given the opportunity? if osama bin laden, if you had 30 minutes in the

now we're not saying that tamerlan tsarnaev ever met abu dijan. interesting that he linked to a video of this man shortly after he, in fact, himself had been in the same city of that now deceased militant. john? >> nick, you're doing terrific reporting from the region. really help putting the pieces of this puzzle together. just a short while ago you spoke to the suspect's aunt. what did she have to say? >> well, his aunt had a couple of interesting things to say. i think the thing that stood out the most was that she herself was surprised to see tamerlan return to dagestan last year. very much a devout muslim. she almost joked she was worried he would go to america and take up drink or drugs. but, in fact, he adopted the muslim faith there. came back devout. wouldn't look women he raent related to in the eye, and talked a lot about the central role of religion in life. another interesting fact, too, she came out with, the family, in fact, came back from kurdistan to chechnya, just near from where i'm standing, before the second chechen war. that

he thinks tsarnaev made more than one trip to the region. we are learning more about the suspects from the russian republic of dagestan where they once lived. cnn can exclusively reveal alleged boston bomber tamerlan tsarnaev, the older brother, had video of jihadists on his youtube channel. let's check in with cnn's phil black in moscow. phil, what do you know about this video? >> reporter: don, you look at that youtube page, there's a subheading there called terrorists. there were two links to separate videos. cnn tracked one of them down. it features a dagestani militant leader, a man who is known on the internet to call young muslims to engage in violent jihad. now, that video in and of itself shows that tsarnaev had an interest in this man. but there's another possible geographic link as well. because abadujan was killed in the capital of dagestan in december 2012. just months after tsarnaev was in the same region, same city, visiting his family. so he was there at the same time, but it is not known precisely if these two men could have

is in front and dzhokhar tsarnaev is a few feet behind. are seen a half block away from a restaurant camera. a minute later, bomber one, tamerlan walks out of the crowd with a knapsack on his back. at 2:45, alleged bomber two, dzhokhar walks to the finish line. he has a cell phone in his left hand. the affidavit says he stops near a metal barrier his back to the cameras and he is apparently slipping his knapsack on the ground. he stands there for four minutes, looking at his cell phone appearing to take a picture and a deadly final 30 seconds. just before the first explosion, dzhokhar tsarnaev lifts the phone to his ear as if speaking on it. for 18 seconds he keeps the phone to his ear. as he appears to finish his call the crowd reacts to the first explosion. virtually every head turns toward the blast except for tsarnaev who virtually alone among the individuals appears calm. he glances to the east and starts walking rapidly to the west away from the finish line without his knapsack which he left where he was standing. ten seconds later a

a defense similar when it comes to the tsarnaev brothers.ver expressed any sentiments of violent behavior. >> if we could have done more, we would have. >> the people who knew the brothers were immediately instructed to call the fbi. the younger brother rarely attended services here, and the older brother only occasionally. it was his own actions that seemed to dispute the idea of a radical mosque. three months ago, he shouted at a preacher. charles jacob stopped short of accusing the mosque of having a hand in radicalization. is there any evidence that any of these teachers were used in red callizing the bombers? >> we don't know that. >> i know that there are is many questions. what happens to the members of the mosque find they have a radical in their midst, what do they do? >> reporter: the litmus test seems to be violence. when you have someone like tamerlan tsarnaev standing up in a sermon, interrupting the sermon and then getting mad and angry and calling the minister names because he objected to how he was portraying dr. mortartin lu

one suspect, tamerlan tsarnaev was killed.ay five, witnesses describe the mayhem. >> we saw the explosion. we must have heard about 60 gunshots. >> reporter: 2:40 a.m. a robo call sent to watertown incidents. >> there is an active incident in watertown right now. all watertown residents should remain in their homes. >> reporter: 4:22 a.m. a suspect on the run. >> we believe this to be a terrorist. we believe this to be a man who's come here to kill people. we need to get him in custody. >> by 8:00 a.m. friday, all of boston and surrounding areas shut down, as an unprecedented manhunt ensues for suspect two, dzhokhar tsarnaev, brother of suspect one. >> we have suspended all the public transit service and that will continue until we think it's safe to open all or some of that. we're asking people to shelter in place, in other words to stay indoors with their doors locked. >> at 8:20 p.m., the stay inside order was lifted without a suspect in custody. >> in terms of how he got away, he did it on foot. he fled in foot. >> minutes

to the tsarnaev family., she was there for more than three hours and erin continues to cover this angle outside the russell family home in rhode island. what more did her attorney say about her husband? >> reporter: well, as we know, earlier today, she was at her attorney's office and she was meeting with federal investigators. she was there for about three hours. now, in this statement her attorneys just released, they say and i'll read this to you, in the coming days, katherine will continue to meet with law enforcement and provide as much assistance to the investigation as she can. now, erin, here's another thing i want to tell you about this statement. the attorneys also have said that the massachusetts medical examiner's office is preparing to release the remains of tamerlan tsarnaev and katie russell says she wishes those remains were released to the family. to that end, just about two hours ago, i was again outside her attorney's office in downtown providence and i ran into uncle ruslan, the uncle of

listen to this. >> tamerlan tsarnaev. >> tsarnaev was just 22 when this documentary was filmed. he wanted to be an olympic boxer, but not long after that footage shot disqualified from competition because of a change in it it accidentship rules. brian todd, let's listen to what tsarnaev told entertainment tonight's rob marciano about how the loss of the olympic dream may have impacted this young man. >> he gave me the impression that the reason he was unable to go to the olympics was because he couldn't become a citizen because of mishandling of paperwork and he felt that it was done on purpose so that the guy that he beat could go to the olympic trials. >> do you think that this roadblock in his boxing career set him on the path to these bombings? >> absolutely. >> that was the trainer for tsarnaev, john allen, speaking to rob marciano. brian, you've spoken to other boxing coaches who came contact with tamerlan tsarnaev. what did they tell you? >> reporter: wolf, they put together a picture of a frustrated boxer who got very close to the top levels of the sport but couldn't qui

and 19-year-old dzhokar tsarnaev. brother got out of the car, parentally ready to go down and take others with him. we're told he was wearing explosives and a trigger. his younger brother, in a car, ran over him and then escaped. 900 police officers were immobilized. >> this is my home and it's scary to think of your homes alike a war zone almost. >> around 4:00 a.m., authorities released a new photo of dzhokar tsarnaev parentally taken from a convenience store camera. >> there's a manhunt under way. public schools and university like harvard and m.i.t. closed. trains, subways, ordered to stay put. an historic city in danger and in fear. >> we believe this to be a terrorist. >> reporter: brian todd, cnn, boston. >>> all of this ended with dzhokar tsarnaev on a boat and this is a photo of that moment. he was on a boat on a trailer. we know that he had taken shelter inside that boat when he was spotted by a neighbor. that neighbor called police. that's when the tactical squad loved. we knew he had been wounded but after

authorities questioning tamerlan tsarnaev's widow. did she know of his plans to blow up the boston marathon? he g through allergies. try zyrtec®. powerful allergy relief for adults and kids six years and older. zyrtec®. love the air. once you try an oral-b deep sweep power brush, you'll never want to go back. its dynamic power bristles reach between teeth to remove up to 76% more plaque than sonic in hard to reach areas. oral-b deep sweep 5000 power brush. in hard to reach areas. great first gig! let's go! party! awwwww... arigato! we are outta here! party...... finding you the perfect place, every step of the way. hotels.com waiting for your wrinkle cream to work? clinically proven neutrogena® rapid wrinkle repair. it targets fine lines and wrinkles with the fastest retinol formula available. you'll see younger looking skin in just one week. one week? that's just my speed. rapid wrinkle repair. and for dark spots rapid tone repair. from neutrogena®. omnipotent of opportunity. you know how to mix business... with business. and you...r

was tamerlan tsarnaev radicalized overseas? maybe so. but his uncle says tamerlan's views more likely came from someone in the u.s. >> i heard that talking from tamerlan, where that might be coming from. and then he says,oh, yeah, there is -- yes, there is such a thing. there's a person, sort of a new convert into islam. >> that convert, a muslim extremist right here in the boston area. he said this person just took his brain. his brainwashed completely. tamerlan is off now. there's no obedience in rmt respect to his own father. >> he says he stopped listening to music after talking to misha. tamerlan's mother says misha was a good influence on tamerlan. >> when misha visited us, he just opened our eyes, you know, really wide about islam. he was really hi devoted and his very good, very nice man. >> dzhokhar tsarnaev told investigators that they conceived the attack. and that they were self radicalized jihadists. >> late this week, new york officials had their own news about the bombers. >> last night, we were informed by the fbi that th

they are talking to lawyers for tamerlan tsarnaev's widow.not talking to her directly? according to her attorneys, the 24-year-old rhode island native is cooperating with the investigation and knew nothing about the bombings. it's still unclear exactly what she did know. our understanding, of course, chris lawrence has reported that she seemed to have been living with him in boston with their young daughter in the time leading up to and when this happened. chris lawrence is in rhode island tonight with the latest. chris, i know her attorneys are talking to the fbi. but why isn't she? >> reporter: well, if she is, erin, her lauwyers are certainl not admitting that publicly. the lawyers are telling us that they are talking to the investigators on her behalf but they won't confirm whether katy russell has spoken with them directly, one on one. that said, she wants to get to the bottom of this and has nothing to hide. >> she is doing everything she can to assist in the ongoing investigation. >> the injuries and loss of life to people who came to

was tamerlan tsarnaev radicalized overseas? maybe so.ncle says tamerlan's views more likely came from someone in the u.s. >> i heard that talking from tamerlan. where that might be coming from. and he says, oh, yeah, there is -- yes, there is such a thing. there's a person, sort of some new convert to islam. >> reporter: that new convert, a muslim extremist right here, in the boston area. >> he said this person, just he took his brain, he brainwashed him completely. tamerlan is off now. there's not even any obedience and respect to his own father. >> reporter: the uncle says tamerlan told him he quit listening to music and got very conservative after talking to the extremist whose name was misha. tamerl tamerlan's mother says misha was a good influence on her son. >> when misha visited us, we just kind of -- he just opened our eyes, you know. really wide. about islam. he was really -- he's devoted and he's a very good, nice man. >> reporter: dzhokhar tsarnaev, the surviving brother, told investigators that they conceived the attack and t

the capture of 19 ye-year-old dzhokhar tsarnaev. very clear he will not be tried as an enemy combatant. it's a controversial movement i spoke earlier with john ashcroft, former attorney general to the bush administration, about it. attorney general ashcroft, thanks so much for joining us today. if you were attorney general right now, would you be recommending that dzhokhar tsarnaev be tried as an enemy combatant, or are criminal courts also okay with you? >> yes. the answer to that question is yes. fortunately, there is a mountain of evidence that would support either a state charge or a federal charge in the article iii courts, meaning the traditional criminal jurisdiction courts, and the evidence is so substantial that it probably doesn't matter whether or not anything he would say now to interrogators would be used against him. he's already -- the focus of so much hard evidence that the business about miranda warnings is probably a tempest in a teapot here. >> you were attorney general from 2001 through 2005. based on your experi

was tamerlan tsarnaev radicalized overseas? maybe so.s uncle says tamerlan's views more likely came from someone in the u.s. >> i heard that talking from tamerlan. where that might be coming from. and he says, oh, yeah, there is -- yes, there is such a thing. there's a person, sort of some new convert to islam. >> reporter: that new convert, a muslim extremist right here, in the boston area. >> he said this person, just he took his brain, he brainwashed him completely. tamerlan is off now. there's not even any obedience and respect to his own father. >> reporter: the uncle says tamerlan told him he quit listening to music and got very conservative after talking to the extremist whose name was misha. tamerlan's mother says misha was a good influence on her son. >> when misha visited us, we just kind of -- he just opened our eyes, you know. really wide. about islam. he was really -- he's devoted and he's a very good, nice man. >> reporter: dzhokhar tsarnaev, the surviving brother, told investigators that they conceived the attack and that

dzhokhar tsarnaev faced federal or state charges or a combination of both.ng to talk about it next, and the boston marathon bombing drawing comparisons to the oklahoma city bombings back in 1995. we're going to talk to the attorney for timothy mcveigh and the man who prosecuted him about that crime, and this one. oud pl. to prove it, we set up our call center right here... [ chirp ] all good? [ chirp ] getty up. seriously, this is really happening! [ cellphone rings ] hello? it's a giant helicopter ma'am. [ male announcer ] get it done [ chirp ] with the ultra-rugged kyocera torque, only from sprint direct connect. buy one get four free for your business. only from sprint direct connect. when ouwe got a subaru.s born, it's where she said her first word. (little girl) no! saw her first day of school. (little girl) bye bye! made a best friend forever. the back seat of my subaru is where she grew up. what? (announcer) designed for your most precious cargo. (girl) what? (announcer) the all-new subaru forester. love. it's what makes a subaru, a subaru. bob will r

but quotes tamerlan tsarnaev as saying yes, i slapped her. neighbors tell us they thought the tension in the family dissipated after the parents and sisters moved out a couple of years ago. brian todd, cnn, boston. >> and one perspective there from brian todd. let's dig deeper into the background of the man who apparently was the driving force behind the boston terror attack. >> atika shubert has a timeline of key events in his life. >> here is what we know about tamerlan tsarnaev. he was born in 1986 as a chechen refugee in curring stan. in 2001 his family moved to dagestan, and a year later the family, with younger brother dzhokhar moved to the united states. but tamerlan only moved to the u.s. in 2003, and there his passion was boxing. in 2009 he competed in the golden gloves tournament, losing in the first round. and even then he considered himself a devout muslim. but by 2011, his religious fervor had grown. he was praying five times a day, but also growing increasingly frustrated with his american life. now that same year, the fbi inter

dzhokhar tsarnaev is now hospitalized in serious but stable condition. doctors say he's lucky to be alive after that dramatic shootout with police officers that wound up killing his older brother. elizabeth cohen standing outside the beth israel deaconess medical center where he's being treated. what do we know about his condition specifically, elizabeth? >> wolf, according to our affiliate, whgh, tsarnaev is in the intensive care unit, and cnn sources tell us -- sources tell cnn he has wounds to the throughothroat and he is sedated and intubated. intubation means a tube is placed usually down the throat into the windpipe and is attached to the ventilator and that ventilator breets for him. it doesn't mean he can't breathe. very often when patients have a large loss of blood, doctors prefer the machine breathe ratherthen the patient. it puts less strain on the patient. and people are often sedated when they're intubated. they're out of t not able to hold a conversation. wolf. >> all right, elizabeth, there could be some dramatic developments over at the

about tamerlan tsarnaev twice.hey told the fbi early in 2011 and late the same year a government source tells cnn they also told the central intelligence agency, too, the cia. now the question is, what did the government do about it? when tamerlan tsarnaev left the u.s. for russia in january, 2012, the department of homeland security took note. his name was included in the customs and border protection system which is supposed to detect unusual or suspicious travel. it was there because the now dead boston bomber was also included in the fbi's enormous terrorism screening data base. 500,000 names of known or suspected terrorists. he was also on the national counterterrorism center's terrorist identity's data mart environment similar to the fbi list and updated several times a day with much more specific information. his departure was communicated to the joint terrorism task force in boston. so how is it that three government agencies knew about tsarnaev but he got such freedom to travel? intelligence and law enforc

the tsarnaev brothers took off.when tamerlan was killed. professor fox says, given the information that the brothers planned an attack in new york -- >> were it not for his actions, his behavior, his composure, his witsz about him, who knows what would have happened. >> reporter: professor fox said the victim doesn't consider himself a hero and is still nervous because he knows he may well have to recount the entire episode in court if and when dzhokhar tsarnaev goes to trial. >> thanks very much, brian todd, an excellent report. dzhokhar tsarnaev is now locked up in a federal prison facility. authorities say he was moved around 3:30 a.m. this morning from a hospital in boston, to a prison medical center, about 40 miles away in devens. it's on the grounds of a former u.s. military base. a law enforcement source telling cnn tsarnaev has been able to sit up, and that he has now been actually writing. it's not clear what he's writing. cnn's tom foreman is joining us to give us a virtual tour of this prison facility. wh

dzhokar tsarnaev. last night he and his brother, according to authorities, were involved in a firefight with police. the brother was killed. dzhokar tsarnaev has been the subject of one of the most intense manhunts in modern american history. don dahler is in the neighborhood now. and, don, what are you seeing? what are you hearing? >> reporter: seeing a lot of movement down at the end of the street, scott. a lot of these investigation that were down there with their lights flashing are moving out in different directions. i heard the same audio that you did was cheer that came up with that word came out on the scanner. and of course, just as you said, have of we have confirmed from a law enforcement source that the person on the boat is in custody, but they have not identified that person. i have to tell you, i was thinking about the people in this neighborhood as we were watching this happen, how many people must be terrified sitting in their house all day long, while the lockdown was under way. and h

. >> tamerlan tsarnaev and dzhokhar tsarnaev are believed to have agected alone. he could face federal terrorism and face murder charges. >> two bombs injured nearly 200 people and dilled three. the brothers also allegedly killed a police officer while on the run. >> 29-year-old crystal campbell had gone to the marathon to cheer on the runners. >> also today boston university will hold a memorial service r lingzi lu. >> authorities wait to fully question dzhokhar tsarnaev, but it's not clear if he'll everybody be able to talk again. elizabeth cohen joins us from boston where it is 2:00 a.m. and the vigil continues and what kind of shape is he in? >> we are told that he's in the intensive care unit and that he has been intubated and sedated, that means a tube has been put down his throat, he's been attached to a ventilator which is breathing for him. in this case they sedate patients because it's so uncomfortable, even painful. you can't have a conversation when they're in this condition. they can put them on sedation holidays where you take them off the sedation b

and dzhokhar tsarnaev as we've never heard before.line. i'm wolf blitzer. you're in "the situation room."

as tsarnaev remained at large. >> the watch words, be careful. be vigilant.police if you see anything, and just be prepared for anything. >> i mean, we can't believe it. when we woke up this morning how quiet. there was nobody on the streets. everything is closed. >> reporter: boston commons, empty. mass transit, frozen. fenway park, deserted. it was a city on edge. coffee shop owner tom barnes stood on tremont street looking for customers. by 10:00 he served five people. normally that number would be 200. >> a whole day of revenue. but, you know, if it's the safety of the people that's more important than a few hundred dollars. >> reporter: one young man in a baseball hat, holding nearly a million captive. the city is certainly celebrating the capture this morning, alex. as we talked about yesterday, there is also a subtle anxiety. one on the back of people's minds that just one man, just one man could cause a major metropolitan city to completely shut down. >> absolutely. you know if you think about it. just the stress. i just want to say anecdotally person

why would the tsarnaev brothers do it?id they do it, and most importantly who might have helped them? >> what they want to do is ensure that there are no other ties to any other groups that might try to follow up with this or plan something. >> julia kayyem is a former assistant secretary to homestand security. >> the other piece is building a strong case and making sure that case doesn't fall apart. that's why the indictment released this week was very, very careful to say, look, we know he used weapons of mass destruction. we know he killed people, and that's enough to give him the death penalty. >> to build the case and find the answers hundreds of federal investigators are now working around the clock, digging through debris, analyzing bits of bombs in one of the nation's largest terrorist investigations since 9/11. neighborhoods like this one across boston are being visited by the fbi. this man says five fbi agents showed up at his door to question his son about tweets sent to the younger brother, and on the college c

what is the latest on tsarnaev's condition? >> reporter: the latest is that he remains here at beth israel deaconess medical center in serious condition. he is still in the intensive care unit handcuffed to his bed 24/7 monitoring by law enforcement officers. we are told that he is intubated and sedated with a gunshot wound to the neck. so it appears that he is still pretty out of it. wolf. >> doctors are telling us that tsarnaev could put something -- could be getting something that's described as a sedation holiday. i know you've been checking with medical personnel over there. what does that mean? >> reporter: well, i've been talking with our medical correspondent elizabeth cohen and she tells me that essentially this means doctors can decrease the sedation for a few minutes to a few hour so is that doctors or authorities would be able to communicate with the patient. we've seen this before it in other cases and it appears now that we're hearing from colleagues gloria borger and fran townsend that he's communicating with inv

tsarnaev's laptop. authorities are looking for his computer in a land fill, a dump in new bedford, massachusetts. a law enforcement official says investigators went there after getting leads from tsarnaev and others who may have played a part in throwing the computer away. that's key. earlier cnn's susan candiotti explained to anderson cooper why the laptop is a top priority. >> if they can find that laptop, anderson, in this land fill, after it had been ditched somewhere that was, you know, like a dumpster that eventually made it to the land fill, if they can get into that, they can find out things like e-mails and cocts a schedules and instructions. so much other information about how this plot may have come together. >> and, of course that depends on what condition that laptop is in, if they do find it. meantime, dzhokhar tsarnaev woke up this morning at a prison medical center in devens, massachusetts, 40 miles from where i'm standing. that facility, just west of boston, a law enforcement official s

go off there at the boat where dzhokhar tsarnaev was hiding as we know, tsarnaev was wounded.hief of police in watertown, massachusetts tells martha raddatz, at that point authorities weren't taking any chances. >> he was very slow and lethargic, every move he made. and they could see there was no device on his chest. concern was what is in the boat? was it more explosive devices? >> he also said police were still very concerned that tsarnaev wanted to go out and kill more people. he described it as an incredible feeling when they knewy the finally had him in custody. >>> it could be days before the neighborhood where last week's shootout with police took place gets back to normal. >> abc's brandi hitt joining us from boston with that part of the story. brandi? >> reporter: good morning, john, diana. this is still an active crime scene and will likely remain that way for a couple more days. the fbi is still on scene. over my shoulder see where police still have boylston roped off now with officers guarding the gates. right now the fbi continues to pull evidence. law enforcemen