technological work gives us information that abu dujan went there, met people, and agitated. mes. >> reporter: there are reports that dujan was observed at the mosque and he was observed meeting tsarnaev. do you know this? >> translator: i really can't answer this for different reasons, i can't answer. you understand me? >> reporter: now, the mother did say to me that tamerlan tsarnaev did attend the culture of mosque a few moments ago but i didn't see anything significant. there is no confirmation that the two men met but the pieces are overlapping. they were here at the same time and probably had to have some source of training that wasn't on the internet and abu dujan were running camps in the forest. at this point though there are no information theyed that district contact, i should point out. >> you say those overlapping pieces simply fascinating. and i'm sure investigators here and in russia will want to look into that. thank you so much. let's go back to zoraida in new york. >>> back to our breaking news, john. two barges loaded with gasoline exploded last night. look

and shakhrudin askhabov is part of abu dujan's militant group. why does it relate back to the boston bombings? because tamerlan linked from his youtube account on to that particular page with abu dujan. the raid carried out very early in the morning yesterday. russian special forces tracking down askhabov. it's not clear if askhabov met tsarnaev or even if abu dujan who used to be the leader of the group that askhabov worked in, if he met tsarnaev. what we do know is this hunt is ongoing. special forces tracking these people down and they belonged to a group linked to on tamerlan's youtube account. >> so now we're getting at it. let's take a half a step backwards because one of the big key questions here is who is driving the information. is there the coordinated effort that we're worried was it in place before. your understanding, is this about russian intelligence, what they believe may have been a connection, is the u.s. involved in coordinating, what do we know? >> reporter: this man askhabov has been wanted by the russians for quite some tim

tamerlan tsarnaev made a link to abu dujan.wo men met, but what is curious at this point, not only that tamerlan had interest in abu dujan, but russian authorities are hunting him down across dagestan. this particular video we know shakhrudin askhabov is connected to abu dujan because i've seen a wanted list that shows him as part of the team and we've seen pictures from the police in which it's clear askhabov is part of that particular group. so ongoing manhunt in russia related to the man russia speci forces activity, a raid on a militant group with possible connections to tamerlan tsarnaev. so let's talk more about that with tom fuentes. former assistant director of the fbi. you hear a special forces raid in russia on a militant group that tamerlan tsarnaev had youtube videos of. what does that indicate to you? >> to me it indicates that they have been monitoring this group all along. obviously through 2011 when they're intercepting phone calls with the mother in russia and then through 2012 when they actually attacked and k

mosque is their mosque where all of them go, technological wosk gives us operational information that abu dujant there, met people, and agitated. not once but many times. >> there are reports that dujan was observed at the mosque and he was observed meeting tsarnaev. do you know this? answer this for different n't - reasons, i can't answer. you understand me? >> now, i should point out the two men didn't actually meet although so much of their lives overlap. some more points coming out of the press conference by the parents. the mother suggested she may renounce her u.s. citizenship saying she doesn't believe she will be allowed to see dzhokhar if she went to the united states. she seemed a little bit less sure she wouldn't getting a cess when i spoke to her earlier on and said now being fed by tubes. very emotional scene at this press conference, contrasting with the woman you've seen more calmly when i spoke to her earlier on to try and reconcile. the vision that she had on angelic children and that being presented by the media and by u.s. officials. john? >> all right, nick, thank you. >>> e

we also understand that abu dujan was a regular attendee of a mosque in the heart where i'm talking to you from. this mosque also relatives have suggested may have been attended by tamerlan tsarnaev last year. so no concrete of him speaking. the link from the youtube channel to the video of abu dujan, which does suggest at least tamerlan tsarnaev had an interest in a militant who lived in the same town as his father last year, piers. >> we know his father is coming over to america, possibly as soon as friday. we thought his mother was, but that seems unlikely now. what is the investigators' view of these parents? because they have both got asylum out of dagestan and then go back there. do we read anything sinister into their activities? >> reporter: incredibly itinerant parents and family. when i spoke to the mother, she was generous in her comments about the american government. perhaps they feel the refuge they got there in the united states earlier and last decade was something to deeply appreciate. they seem to have come back here. it seems last year. we heard from the aunt, becaus

abu dujan and tamerlan were in chechnya.n a training camp in the woods and made this video of how to make homemade explosives and use a cell phone as a detonator and said the local police chief they trained foreigners. >> what did the foreigners learn in the woods? >> translator: i can't talk about the number of foreigners, but they met to exchange their banded experience. >> he said the militants train chechen men who live in other countries. >> there are reports that dujan was observed at the mosque and he was observed meeting tsarnaev. do you know this? >> translator: i really can't answer this. for different reasons i can't answer. you understand me? >> did abu dujan and tamerlan meet? we don't know. this past december abu dujan and other militants were killed when russian special forces hit their hideout. >> maybe he's a hero of the brother. maybe he isn't, but tamerlan watches these videos and then this individual gets killed. now logic would tell you, well, who would you be mad at? runners in the boston marathon? what

he put up a link to a video titled abu dujan, emir rabbikalani. the video was removed - but cnn has now found it. and it shows this man. abu dujan is the name used by an islamist militant gadzhimurad dolgatov. russian special forces hit dolgatov's hideout last december. an armoured car brought in to kill as many as 6 militants inside, including dolgatov. the grizzly aftermath showing their heavy weapons. but also the heavy hand used to kill them. four months later, the marks remain of the tit for tat violence fueling militancy across this region. neighbors told us the young men who once lived here seemed peaceful, ordinary. but in the dust lies a question. why did tsarnaev's you tube page link to the rants of the militant who died here? in a town where tsarnaev's father lived, and that tamerlan visited just last year. inside you can see how intense the violence must have been against this apartment. and 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 intelli

whether there were americans, i don't know. >> the police chief told us abu dujan was often observedre. the mosque behind me denies ties to extremist. it's possible that tsarnaev prays here. >> of course, the mosque is their mosque. our technological work gives us operational information that abu dujan went there, met people and agitated. >> not once, but many times. >> there's reports that dujan was observed at the mosque and observed meeting tsarnaev. do you know this? >> i really can't answer this. for different reasons, i can't answer. you understand me? >> nick payton walsh, cnn. >>> we have breaking news right now. we're learning that the ranking member of the house intelligence committee, congressman rupersberge just told reporters crucial details. a controlled device, similar to run used for a toy car was used to set off the bomb at the boston marathon. so a remote control in one of the cars you give to your kids at christmas, this was not a remote for a garage door kind of opener, was very specifically something used to control a toy car. that is the latest that we have righ

militants like abu dujan claim they wage jihad against corrupt russian police. shows them cutting the throat of a policeman in his home. the west sometimes in their sites as they retrain and recruit in the words chechen's wars begat a cycle of violence that doesn't stop, just spreads. nick payton walsh now joins me live from dagestan. we know the parents of the tsarnaev brothers have left dagestan. do you have any idea where they're going and whether or not they still plan to come to america as they previously said they would? >> reporter: jake, when i spoke to the mother this morning she wouldn't elaborate on where they're going but simply said they were leaving dagestan to get a bit of privacy really after the intense spotlight. not only the media but also russian security investigators talking to them at length. one issue for them is the health of the father anzor. he did say he wants to go to the united states quite regularly and was supposed to have already been on his way there but health apparently has slipped in the past 24 hours. he has not been in at a

>> reporter: did abu dujan and tamerlan meet? we don't know.st december abu dujan and other militants were killed when russian special forces hit their hideout. >> maybe he's a hero of the brother. maybe he isn't. but tamerlan watches these videos, and then this individual gets killed. now, logic would tell you, well, who would you be mad at? runners in the boston marathon, what do they have to do with it? would you be mad at the united states? what do they have to do with it? >> reporter: no one will ever know. but we do know that on his last visit to dagestan tamerlan's family noticed a change in him. >> translator: we were happy that he didn't become a drug addict, he didn't become an alcoholic. he was on the path of islam. >> reporter: his family says that during his time here tamerlan would often visit the central mosque behind me for friday prayers as well as other mosques across this town, telling his family how central islam was to his life and that it was a religion of peace. that's why she doesn't believe that tamerlan and dzhokhar co

. >> reporter: this is abu dujan in a video that one of the bombers, tamerlan tsarnaev posted on hisnnel. russian forces killed him last december in dagestan. dagestani police have revealed to cnn this small-time militant ran training camps for bomb-making that foreigners came to. police gave us images of his group training in the woods. this one explains how to mix and prepare homemade explosives almost anywhere. and the group's pictures suggest they learned to use a mobile phone as a debtonater. >> translator: we do not have audio or visual confirmation, but we have information confirming that he met with foreigners. there are dagestanis who come here to meet in their historical mother land whose roots are here. >> reporter: could that have included americans? >> translator: it's entirely possible. but i know there were arabs and turks among them. but whether there were americans, i don't know. >> reporter: the police chief told us that abu dujan was observed coming here to this islamic mosque behind me which itself denies any links to extremism. it is possible, though, that tamerl

abu dujan as a reasonably well-known figure head, running a group of rebels and militants who did training and even learned how to make explosives in the woods throughout all of last year, the same year, the first six months of which we also know that tamerlan tsarnaev was, in fact there as well. >> you talked to the dagestani police, and they said foreigners did attend militant training camps run by abu's group? >> reporter: absolutely. the police chief we spoke to was clear that -- there were arab men and turkish men there. he said it was possible men of american descent had also attended. but he was giving a knowing look when asked to go into further detail. he also said that some men, in fact, who were dagestani or local by birth or origin but had gone on to other countries to get citizenship or the right to live there had also come back too. i'm not quite sure what he was trying to refer to there as well, anderson. >> nick robertson, we know he spent time in dagestan, tamerlan. and i know -- how big are the gaps of time we do not know about? about his whereabouts? over the course of t

of abu dujan's group.'t know if that is specifically because any of them met tamerlan tsarnaev but it is an interesting coincidence that that raid happened. the fbi andfsb continue to exchange information, brooke. >> all right, tapper here in boston. do we know if the u.s. specifically had anything to do with this raid and bigger ow the u.s. is working with russian intelligence, the fsb and other groups. how much closer has this cooperation become since the bombings, and since it became clear that there was a russian connection to all this? >> reporter: well we have absolutely no idea if the u.s. had anything to do with the raid we saw this pure coincidence that abu being taken out now the raids happen frequently in that part of the world. militants often being chased down by a very aggression russian security services. has cooperation expanded? we have interestingly today heard kind of the first comments really from the russian government since president putin talked in his press conference last week abou

abu dujan, a video of him was linked off the youtube page of tamerlan tsarnaev.art of the same armed group. now, that means there is ongoing activity by russian security services on the ground in russia as that investigation continues. and as we know, the fsb and fbi are exchanging information. no specific link between the men, but certainly a substantial coincidence, wolf? >> we do know president obama spoke to president putin today in russia. they had what the white house calls a good conversation, and the president of the united states thanked the russian president for the cooperation in this investigation, at least this phase in the investigation. i get the sense both of these governments, despite the fact they are not allies or close friends, they are working a little bit more closely now as far as the terrorism situation is concerned. is that the impression you're getting in moscow, as well, nick? >> reporter: well, it's very interesting to see how little the russians are giving away in public here, but how often it appears putin and obama want to talk abou

abu dujan is the name used by a militant, gadzhimurad dolgatov. an armored car was brought in to kill as many as six militants inside. the grisly aftermath showing their heavy weapon bs but also e heavy hand used to kill them. neighbors told us the one man who once lived here seemed peace. and ordinary, but in the test lies the question, why did tsarnaev's youtube page link to the rants of this man? inside you can see how intense the violence must have been against this apartment, and 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 the tsarnaev brothers social media accounts are being examined for extremist links in the caucasus? none of this means they ever actually met or influenced each other but it shows the elder brothers interest in this alleged extremist activity here in dagestan, a man who died only at the hands of russian special forces, in a town where tamerlan's father lived and where tamerlan visited in 2012. th

or abu dujan's people. the russians are watching him and his people as much as possible and ultimately this past december kill him in a major shoot-out. we hear nothing about that. no information was coming back, saying what he was up to over there, and that would have been up to the russian security service to tell us. what he's sdoog. >> no doubt, tough questions for the russian as well. thank you very much for your views this morning. >>> moments ago, the tsavraev parents held a news conference, father headed to the united states in a few hours. cnn senior correspond respondent nick patton walsh joins us. you spoke to their mother. but nic robertson, let's start with the news conference. what did they say? >> jake, it was about a 45-minute press conference. a lot of journalists, questions being fired in english and russian from all sides, a jumble of economi of questions. at times they seem confused. at times emotional, at times direct and strident in what they were saying. tamerlan's mother in particula

militants here, well, those militants are under 24/7 coverage in russia, as evidenced by the fact that abu dujan, he's killed by the russians in a major firefight this past december. so obviously, my expectation would be if they're suspicious of tamerlan and they're watching this group, he should have wandered into their surveillance and come up on their radar by that. additionally, russia doesn't have the first amendment, fourth amendment, fifth amendment. they have no problem with, if they have radicals in a mosque, they're going to cover it. if they have militants meeting. they're going to cover it. if they have political groups that say bad things about the russian regime. this is a regime that just locked up a rock 'n' roll group because they criticized putin. i have a hard time understanding that this guy, when he arrives in russia, and meets with people that are so high on their radar, they kill him. how does that happen? >> they don't even have to allow him in russia, if they don't want to, right? >> that's right. >> what we know now is two agencies have the concerns about the older brot

abu dujan is the name used by an islamist militant. russian special forces hit his hideout last december, an am mored car brought in to kill six militants inside. four months later, the marks remain of the tit for tat violence. neighbors told us that the young man who once lived here seemed peaceful, ordinary, but in the dust there's a question. in a town where tsarnaev's father lived and where tamerlan visited just last year. 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 the tsarnaev brother social media accounts are being examined to possible links to extremists in the caucuses, in case they reveal the darkest secrets in boston. why did the bombers do it? now this doesn't mean that tamerlan tsarnaev and -- also a man living in the same town as his father. >> what of this prominentant group there that released a statement on sunday denying any links to the boston bombers, what can you tell us about the group

abu dujan is the name used by an islamist militant. russian special forces hid his hideout last december. an armored car brought in to kill as much as six militants inside including delagato. the heavy hand used to kill them. four months later, the marks remain for the tit for tat violence. in the dust lies a question, why is his youtube page linked to the militant who died here. in a town where he lived and the tamerlan visited just last year. where inside you can see how intense the violence must have been against this apartment. it 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 the social media accounts are being examined for possible links to extremists . none of this means that tamerlan tsarnaev met abu. why was he posting that video from a town where his father lived where he visited in 2012? something investigators may be looking at with regard to what history there may have been with extremism from that a

investigation continues stateside, russian special forces have just killed, taken out, another member of the abu dujan militant group. the fbi and russia has been exchanging information through channels recently. >> i appreciate it. thanks. juliette kayyem joins us now, former homeland security advisor to the commonwealth of massachusetts, former u.s. assistant secretary for homeland security and currently columnist for the boston globe. also, former cia officer bob baer and senior legal analyst jeffrey toobin. how significant is it that female dna has been found on one of the bomb fragments? >> well, the significance for me is the fbi is clearly looking for accomplices. they haven't closed this investigation by any means. they think there's a good chance out there that somebody helped at some stage, whether it's a bomb maker, to put this thing together, so they're very much on this and they're following every lead, but the circle seems to be still very wide. >> you think at the end of the day that the bomb itself, the devices themselves, will be the biggest keys in figuring out if these guys had help

abu dujan is the name used by a militant. russian special forces hit the hideout last december and an armored car brought in to kill as many as six militants inside. the grisly aftermath showing their heavy weapons but also the heavy hand used to kill them. four months later the marks remain of the tit for tat violence fueling militancy across this region. neighbors told us the young man who once lived here seemed peaceful, ordinary, but in the dust lies a question why did tsarnaev's youtube page link to the rants of the militant who died here? in a town where tsarnaev's father lived and tamerlan visited just last year. inside you can see how intense the violence must have been and 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 calk sass in case they reveal the darkest secrets of boston. why did the bom

when he come backs from russia, he puts a video of abu dujan on youtube. to connect the dots as an unsophisticated untrained eye in this regard, doesn't that seem like something that is suspicious? >> chris, it is. i spent a couple of years in prisons interviewing suicide bombers and their networks. and i've yet to see one of them, one of these -- these are hundreds of them that actually came out and told the full truth about who they were and what they did. it just didn't happen. and, number two, let's go back to the explosives. i could take my neighbors and say, listen, guys, get on internet, download this stuff about making detonators and bombs, go out and try it, and i can guarantee you that half of them would come back without their hands. it is just -- you go to the explosive courses, make these things, and the instructors always tell you don't do this at home. they either got extraordinary lucky, i don't discount that, or perhaps, and this is a likely hypothesis, the brother got some kind of field training in dagestan. i think that's the more likely

dujan was observed at the mosque and observed meeting tsarnaev. do you know this? >> translator: i really can't answer this. for different reasons i can't answer. you understand me? >> did abuarjan and tamerlan meet? we don't know. this past december darjan and other militants were killed when forces hit their hideout. >> tamerlan watches these videos and then this individual gets killed. logic would tell me, well, who would you be mad at? runners in the boston marathon? what did they have to do with it? would you be mad at the united states? what did the u.s. have to do with it? >> no one will ever know. but we do know that on his last visit to dagestan, tamerlan's family notice add change in him. >> translator: we were happy he didn't become a drug addict. he didn't become an alcoholic. he was on the path of islam. >> the family says that during his time here, tamerlan would often visit the central mosque behind me for friday prayers as well as other mosques across this town, telling his family how central islam was to his life and that it was a religion of peace. >> that's why she doesn't believe that tamerlan and dzhokhar could have bombed the boston tsarnaev's parents