easy, grab your backpack. >> other parents feel like bulletproof backpacks for kids is an extreme reactionou want a positive atmosphere, not like predicting something bad is always going to be happen. >> gloria from san francisco has triplets in preschool. >> to select a school an area where we would not need to worry about it. if i need to worry about it, i need to reconsider what school they are attending. >> it's something i hated to have to imagine but it's a reality with today. >> there are just a few armor companies that are starting to market them for kids. if you want to check them out go to abc7news.com and click on "7 on your side" for a link. coming up, this sunday on "abc 7 news" at 11:00, i'm going to investigate those puzzles that are forced to solve before buying items. they can be frustrating but i discovered a possible alternative. >> i can't wait for that. [ laughter ] >> they are maddening. we'll see that on sunday. a south bay starbucks has a problem on its hands. it's called in pest control to handle a bedbug infestation. ama daetz has the story. >> i've never seen a b

easy, grab your backpack. >> other parents feel like bulletproof backpacks for kids is an extreme reaction. >> you want a positive atmosphere, not like predicting something bad is always going to be happen. >> gloria from san francisco has triplets in preschool. >> to select a school an area where we would not need to worry about it. if i need to worry about it, i need to reconsider what school they are attending. >> it's something i hated to have to imagine but it's a reality with today. >> there are just a few armor companies that are starting to market them for kids. if you want to check them out go to abc7news.com and click on "7 on your side" for a link. coming up, this sunday on "abc 7 news" at 11:00, i'm going to investigate those puzzles that are forced to solve before buying items. they can be frustrating but i discovered a possible alternative. >> i can't wait for that. [ laughter ] >> they are maddening. we'll see that on sunday. a south bay starbucks has a problem on its hands. it's called in pest control to handle a bedbug infestation. ama daetz has the story. >> i've never se

the suspect with the white hat, that he had the backpack, that he laid the backpack down in front of the restaurant, and i assume they have video of some kind with him not having the backpack, correct? >> right. we don't have those images at this point, but the fbi in fact told us yesterday that they have a clear image of that individual placing what they said was an object at the scene of the blast, and now we know it's the backpack. so that's more as far as what they want the public to think about, what they want the public to come forward with it. did you see someone almoster off witlumber offwith a backpack. it didn't appear that heavy. pressure cooker with explosives, it would be heavier. 25 pounds, it would be on both shoulders. >> sean: that's the interesting thing. nobody paid attention to the internet chatter, but images isolated of other people with backpacks that seemed to be a lot bigger and a lot heavier. i was a little bit surprised about that aspect as well. >> right. one of the things that they caution about, all those images you've seen to this point, of the differen

be easy, grab your backpack. >> other parents feel like bulletproof backpacks for kids is an extremereaction. >> you want a positive atmosphere, not like predictingo be happen. >> gloria from san francisco has triplets in preschool. >> to select a school an area where we would not need to worry about it. if i need to worry about it, i need to reconsider what school they are attending. >> it's something i hated to have to imagine but it's a reality with today. >> there are just a few armor companies that are starting to market them for kids. if you want to check them out go to abc7news.com and click on "7 on your side" for a link. coming up, this sunday on "abc 7 news" at 11:00, i'm going to investigate those puzzles that are forced to solve before buying items. they can be frustrating but i discovered a possible alternative. >> i can't wait for that. [ laughter ] >> they are maddening. we'll see that on sunday. a south bay starbucks has a problem on it'sands. it's called in pest control to handle a bedbug infestation. ama daetz has the story. >> i've never seen a bedbug infestation i

you see he was also wearing a dark colored backpack. get a close-up of that backpack. we'll look at that again in a moment. there could be something very important. suspect two, he has the white hat with the cap backwards. authorities say he left a bag believed to contain one of the explosives outside a restaurant called the forum here on boylston street within minutes of the explosion. that was, of course, the site of the second blast. now the fbi is asking for your help in trying to find these men. that's why they put the video out there. >> we consider them to be armed and extremely dangerous. no one should approach them. no one should attempt to ever apprehend them except law enforcement. let me reiterate that caution. do not take any action on your own. if you see these men, contact law enforcement. >> anyone with information is asked to call 800-call-fbi. now to spell the numbers out, 800-225-5324 or go to their website, bostonmarathontips.fbi.gov. drew griffin has been working the story all day. drew, what have you learned? >> whether they got the suspect, there

you see the backpack. i think this is maybe the better video here. >> it's interesting they say they have the video not of suspect number one but suspect number two laying down that bed. >> very powerful, wolf. for the purpose that they've asked the public's help they're only going to release the minimal amount of information they have to to get the help they need. to tom's point these are videos and pictures in which you can see their face. the rest of it they won't use and frankly if you apprehend these guys and are doing an interview and interrogation you may ask them to describe planting a device and then have the picture in the individual dwroe look at to see if they are telling the truth. >> it issing this they said in the last day or so they did isolate one single person of interest. one of these two suspects. but having done that, that led them more recently to the second suspect as well and if they were involved with others, then obviously they're looking for other people that may be involved thou

licking their residue for a backpack to a similar colors. people wearing similar backpacks.d all that. but these guys have already been called the bombers by the media apart from just as suspects. risk that they are not? >> yes. certainly there is a risk, but think we have, years from the 1996 olympic park bombing in which richard jewell was really not declared a suspect in a press conference the you saw here. a lot of media leaks from law-enforcement at the time. and he was started more because of a profile that he seemed to fit rather than physical evidence. neil: but i remember, you know, i do remember a rush. we have to find the guy, we have to find the yakima and i'm not saying authorities given to that and are less zealous. certainly guys like you aren't because you have the patients of an elephant to just keep going and going and going for years to track down the guide which is why you never want to get under bad side, but in all seriousness , what i see is the same pressure within boston. we have got to find the guy. the guys he did this. i wonder if that influences

both the same age it looks like from the pictures carrying black backpacks which match up with the backpack we've been watching since monday evening late sitting in front of the storm fence in front of the forum restaurant near the curb. an old polaroid. seeing it in develop in front of us. what's next, when they put out this universal apb, all points bulletin they put out 45 minutes ago, where are we going from here? are they sitting at some command center, a situation room waiting for the calls to come in. >> yeah, absolutely, chris. this thing is being run out of a joint operation center. we used to call it -- it's a jock and has all the representatives, all the participating agencies. their command presence. this is the nerve center. then what you'll have is you'll have basically just an army of investigators ready to take leads. so phone call comes in. it will and is it priority one, two, or three, and team one, handle this. the next team comes in. you go. it's going to be teams coming in, talking to people, getting additional information bringing it back and it will be triaged and put

this backpack offers military grade protection against bullets.sts about $300 and is made in colombia. >> if they were to come into the classroom with any guns, put this on on and it would stop the bullets. >> they live in aurora, colorado. he says this the best choice for his family. >> this was the easiest thing i could do to keep my arm around her. >> some parents in the bay area are considering buying similar gear for their kids. he attended hillsdale high school in san mateo where four years ago a student brought weapons and pipe bombs to campus. she liked the idea of arming her kids with a backpack. >> you don't want something to happen where you can't take action. >> chris owns a san rafael gun store. here families are a taught how to safely handle guns and stay safe in an emergency. >> since then, we heard in the first quarter of 2013 we have seen a 20% increase in the number of folks that have come into the training program. those folks i would say at least 25% of them have had some questions about how to better protect their young ones a

they've told folks if they're gathering, they may not bring bags, backpacks. they should come with a few things, maybe a phone in their hand, but not much more. that's 11:00 eastern time here. as for those who are wounded, there are 63 people in six area hospitals who were wounded in the explosion. at least 14 bombing victims remain in critical condition, including three children. there are continued attempts to make sure that psychologically those who were right there, in the blast zone, can handle what they're dealing with on the back end. i spoke to one young man here at tuft's who is saying he's going to move forward but it's go to come a slow process. his father says he's going to be right by his side. back to you, richard. >> thank you, terry. terry sanders live in boston. we'll have a report later on those photographs that terry sanders was mentioned. >>> straight ahead, more news. the senate has dealt a major blow to the president's effort to expand gun control through background checks. but an emotional barack obama vows to fight on. >>> plus new deta

the zipper that was on the backpack, for example. the backpack itself. so again, it's not just the faces, it's also the hats. somebody may recognize that black hat, the signature on it and say, oh, my goodness, i have the same one. i was at a certain event. all of that, all details, wolf. >> they're looking at every little detail of these videos and these still photos. drew griffin, you were inside that news conference. the fbi agent in charge. my suspicion is, drew, i wonder if you agree, that they -- the authorities, the fbi, they clearly know more than they're sharing with the public right now. but they don't want to do anything that's going to undermine the investigation. >> absolutely. it's quite apparent how instructive rick deslaureis was the second time around. he was telling us, look, ignore everything else you've heard, every other picture you've seen. focus on these two pictures. this video. this is what we want you to identify. he is not describing them by race, ethnicity, height, weight. he just wants the american public to view these pictur

be easy to explain to him go grab your backpack, put it in front of you. to feel like bulletprooftalked backpacks for kids is an extreme reaction. she is a parent and teacher. >> you want to create a positive atmosphere, not really like predicting something bad is always going to be happening. >> gloria from san francisco has triplets in preschool. select a school and area where they are safe enough where i would not need to worry about it because if i need to worry about it, then i need to reconsider what school they are attending. >> it's something that i hate that i even have to imagine. but it's something that i realize is reality with today. >>> michael finney tells us there are just a few armor companies that are starting to market the bullet-prove backpacks for kids. for more information go to 7 on your side for a link. >>> sonoma county youth sports league are buying life-saving defibrillators after a player's heart suddenly stopped after he got hit by a pitch. on april 18th parents jumped in to give him cpr until the ambulance arrive. they used a

at 2:45, he slips his backpack off. still photos show the backpack on the ground at his feet. when the first bomb goes off, the fbi says, the video shows the crowd looking towards the finish line in alarm. but the fbi says tsarnaev virtually alone among the individuals in front of the strauvent appears calm. he walks away, it says, without his backpack, and ten seconds later, the second bomb goes off in the spot where he left the backpack. the fbi says both the marathon bombs were made with pressure cookers and metal bee-bees. they contained hobby fuse similar to this. at the scene of thursday night's shootout in watertown, investigators say they found another bomb and hobby fuse and bee-bees. the fbi says they searched dzhokhar tsarnaev's dorm room and found bee-bees in what they call a large pyrotechnic and found a white hat and black jacket, resembling what was worn by the man in the suspect photos released by the fbi. a former federal prosecutor says it's a surprising startling start. >> they took a great unknown, which was last monday and made it virtually unknown a week

they had both the backpacks on, and then they separated. as we know, two explosions, two separate locations. perhaps that first suspect, suspect one, went to that first location, and then spe o, as the fbi is saying, showing on that video or rather in those photo, going to deposit what they say that suspicious backpack at the location of that second explosion. >> jonathan, thank you very much, and we will see you once again at the end of the hour because there may be more late-breaking developments that we will get from you. let's get in the meantime to our distinguished guests tonight. joining us now is former fbi assistant director chris schwecker and the former deputy of the cia counterterrorism center philip mudd and former federal prosecutor andrew mccarthy, the author of the new book, "spring fever, the illusion of islamic democracy." mr. mudd, i'm going to go to you first, if i could. what do these images tell you? they strike me that these gentlemen were extremely confident in what they were doing, seemed to know exactly where they

that's why they gave a description of the backpack today. they were -- that's the -- so one of the investigative things they were eager to get out there, the fact that this thing seemed to be carried to the scene in black nylon bags or backpacks. they want people now to go through their pictures and see if they saw anybody carrying a heavy nylon backpack. because these bombs would have weighed more than what probably most people had in a day pack. >> larry -- >> they were really hoping -- i was going to say, they were really hoping these pictures will give them a big break. >> larry, you said something in an earlier edition tonight on "hardball," you said they're looking for somebody who's heard a bomb blast somewhere recently. a pro, you think, would have tested that circuit tri, circuit board that was apparently used here and that setup with the two pressure cookers. >> anybody that has any rudimentary understanding of explosives understands they need to go out and test it first. particularly when you're going with a plan to set off two de

both are carrying backpacks. suspect number one is seen wearing a black hat, suspect number two is wearing a white hat. the fbi says he's the one seen on video leaving a bag at the site of the second explosion. the fbi warned that these suspects are extremely dangerous individuals. >> we consider them to be armed and extremely dangerous. no one should approach them except law enforcement. >> these suspects are at large and dangerous but the fbi says the public can help. >> somebody out there knows these individuals as friends, neighbors, and we are counting on you to provide information to us. no bit of information, no matter how small or seemingly inconsequential is too small for us to see each piece moves us forward. >> these two suspects are out there. the hunt is now on to find them and bring them to justice. joining me now is michael isikoff from nbc news. >> good to be with you. >> you heard the fbi press conference. what is your reaction? what did we learn and what do you take away from it? >> well, we lea

the backpack you are describing and the photo that we've seen does appear to be a very heavy backpackeavy with a protrusion. >> yes. doesn't mean that's the guy but there is also a report about a suspect being seen on a surveillance video placing a bag down prior to the explosion taking place and it may match the person in the photograph. they may have gone back from that photo to find a photo or another image of these suspects together in one place and that is what led them to this picture that may identify the two people responsible for the bombings. the important thing here is not that the media have the latest information, but -- >> to get the guy. >> the important thing is, yes, that they find the people responsible for this. the last one i think anyone wants is to jeopardize the investigation and to send the guys underground. >> i have already are report on other media sources and am monitoring it closely here. thank you. >> thank you. >> as we wait word who was responsible for monday's attack, the question that begs to be answered," does the boston bombings have the trademarks

and then moved away from the backpack in time for the second explosion.ar about his involvement and pretty chilling frankly. >> so i want to be very clear again that the governor has not seen -- he says he hasn't seen the video himself but that he was briefed about the contents of the video. obviously this will become critical evidence. danny, i want you to weigh in on this also as a defense attorney. you heard what richard reed's attorney said about that video. while it may seem very damning, it could also prove to be ratherin ok would you srather in rather in ok would you s ssay -- innocuo innocuous. >> the defense is going to be he did. they're both going to point at each other. in this case he has a better defense, better being a relative term by saying, hey, the dead guy, he did everything. i was an unwitting victim and there's nobody around to say otherwise. that i predict will be one of their main avenues in this defense of an otherwise very difficult case for the defense. >> and, tom fuentes, the crime scene and then subsequent crime scenes becaus

we should do something about the backpacks. >> no.issa: right, you are shaking your head. >> yeah, i walk around with a backpack with a super size soda in the back. now what happens. i think there is a real problem here. borne out of our success against al qaeda, and their like-minded minions, we've created in a sense a new type of enemy. they have always been good at adapting but they have been adapting for a while now overseas we've seen attacks they have been able to identify and recruit, individuals who live, whether in u.k. or france or elsewhere, those people turn to terrorist actions. there is no reason why we should think in america we're different, the same threat has beennny migrating here. melissa: rob you laughed at backpack thing, you know somewhere along the way there will be an attack to backpacks, maybe you limit them going to public events. or something? >> i think that answer easy answer to that is the level of security needs to become -- commensurate with the risk. do we have level of security to match that particul

and maybe carrying backpacks, and may have been there a long time and placed backpacks down because they're. so you have everybody there, or a large number of people there with backpacks. and many of them taking them off, setting them down because they're heavy. moving them around. and montast of the people are focused on the runners and the people in the crowd and aren't necessary hi paying attention to each individual bag that gets left. it's not the same as an airport where they say unattended bags will be picked up and possibly destroyed. here you have so many bags laying around and people milling around, moving away from the bags, it's a little bit harder to it determine the suspicion of a particular bag lying around. >> tom, we heard the fbi agent in charge say at the news conference a little while ago, they believe the bombs were placed in what he described as black nylon bags or backpacks. he used the word backpacks, also bags. if there is a bomb and it explodes, how do they know -- wouldn't that bag be destroyed in the course of that explosion? >> no, you know, interestingly, in an

to feel like bulletproof backpacks for kids is an extreme reaction. she is a parent and teacher. >> you want to create a positive atmosphere, not really like predicting something bad is always going to be happening. >> gloria from san francisco has triplets in preschool. >> hopefully i would suggest a school and area where they are safe enough where i would not need to worry about it because if i need to worry about it, then i need to reconsider what school they are attending. >> it's something that i hate that i even have to imagine. but it's something that i realize is reality with today. >>> michael finney tells us there are just a few armour companies that are starting to market the bullet prove backpacks for kids. for more information go to 7 on your side for a link. >>> sonoma county youth sports league are buying defibrillators after a player's hard suddenly stopped after he got hit by a pitch. on april 18th parents jumped in to give him cpr until the ambulance arrive. they used a defibrillator to shock the heart back into normal rhythm. he is

likely in backpacks. the explosive charge, according to the information, could propel shrapnel and fragments of that pressure cooker itself at speeds of 3,300 feet per second. that's more than three times the speed of a .9 millimeter round fired from a gun. so we're getting more information on the actual material used to create that explosives and how they may have gone undetected by so many people if they were hidden in, as believed right now, backpacks. that is the latest information regarding the details of the explosives used. security now being ramped up at sporting events in los angeles, oklahoma, even london and germany. back to boston. tonight's celtics game has been canceled. up next, more on the complexity of securing large events that so many of us attend. as we go to break, i'll look at the moment of silence in honor of the victims of boston attack on the floor of the new york stock exchange. [ male announcer ] what?! investors could lose tens of thousands of dollars in hidden fees on their 40

was he carrying a backpack for one of the runners or a player in this plot. >> i imagine with all of these images this is time consuming. you have seen people post ima images. it's going to take forever. >> they'll go through a lot of tape that's meaningless but that's now part of the process. we live in a world where we're surrounded by cameras. you have the boston joint terrorism task force which encompasses all of the federal and local agencies in boston. they will be the lead investigative piece here. you also have back at fbi headquarters the global resources of the fbi being managed from their command center. the strategic operation and information center. the director was down there for the bulk of date monitoring these events minute by minute, briefing the white house as things developed, and they were plugged into 16 other intelligence agencies. cia, dia, the entire alphabet soup and say run your leads globally. was there something picked up on a wiretap or an intercept? a piece of coded e-mail that could relate to this and they'll be feeding all of that material back. >> th

that backpack could lead them to the suspect or suspects. they opened a block and shrinking the crime scene which allowed our cameraman to get closer to scene and get a closer look to the crime scene technicians who are there now still tonight working to document every inch of that area and collect every shred of that evidence. that will be sent to quantico, virginiand continued search for clues. >> greta: we're posting those pictures on gretawire.com. of course, the investigators are looking at the actual construction of the bombs trying to dissect the bomb to track down the killer. f.b.i. just a short time ago confirming that they used pressure cooker explosives. eileen sullivan will be joining us. as far as we know, arlene. tell me are the bombs the same? were they aeye dent cal? >> right now what they see, the evidence they have collected, they believe one of the bombs was contained in a pressure cooker and metal like nails and ball bearings. they think the other bomb was in a metal container but they don't have enough evidence to say it

number one in the dark jacket with the dark hat with khakis and a backpack. subject number 2 with a white hat, worn backwards also wearing a dark jacket and jeans. he, suspect number 2 set down the backpack at the site of the second explosion and then went walking west on boylston street after planting the bomb. again, the fbi encouraging people to call or contact authorities and not try to take these guys into custody themselves. >> we consider them to be armed and extremely dangerous. no one should approach them. no one should attempt to apprehend them except law enforcement. let me it rate -- reiterate that caution. do not take any action on your own. >> bill, the fbi has already processed thousands of leads and tips and no doubt will get many thousands more. >> indeed. and they are set up for that, we do believe, rick. anything else about these people that people, rather, should pay attention to that you are hearing? >> absolutely. everyone should look at the hats these guys are wearing it's possible that they bought them for that day, monday the attack a

he saw him drop off that backpack. eye contact and he still left that backpack right there walked away and according to the authorities, dialed the number and that bomb blew up. kelly: well, thank you so much, jim, for giving us so much good and helpful information and to the people of boston, of course, the nation is praying for you. thinking about all of you. thank you. jim dolan, broadcasting from massachusetts for us this morning. carson: thanks, jim. [applause] ok. kelly: having said that there, were these two men. we showed this, the cover of the newspaper on our show yesterday because they had zeroed in on two other fellows that they were looking for that had backpacks and turns out they were athletes . they're marathon runners. one is a

still photos show the backpack on the ground at his feet. when the first bomb goes off, the fbi says, the video shows the crowd looking toward the finish line in alarm. but the fbi says tsarnaev virtually alone among the

and what they pieced together was the backpack. i'm sure they pieced together the backpack.ible he could have laid his hat on the backpack. so they could have found the hat and the backpack. but they were able from the video to say a backpack looking just like that was there. they probably have video of these guys communicating and talking. that's an interesting report about his reaction. these cowards are probably exhibiting some glee and joy at this, you know, vulgar thing they did. but that's going to be they're undoing as well. >> yeah -- >> they underestimated -- they underestimated law enforcement. and they underestimated the resilience of boston. and william pollard would describe it as the arrogance of ignorance. they're going to be caught soon. >> james, underestimating law enforcement and the resources they can bring to this, is the most useful mistake that criminals like this make in these situations, isn't it? >> well, it's true. they underestimate the capability. look, you've got the a-team here. if you look at every great celtics team, red sox team, bruins team

at 17, that's a backpacking experience centrally? >> every year they go backpacking. it's just that it increases in maybe difficulty or the number of nights they go with age. so the youngest kids do a day trip. the 7 and 8-year-olds. as they come to our two and three-week session, the younger kids go on a one-night trip where the older kids might do a two-night trip, where others might do a more adventure trip. >>> stay with us on mosaic after this break. ,,,,,,,, . >>> welcome back to mosaic. i'm rabbi eric wise. we're in the middle of a wonderful, robust conversation about jewish summer camps. we're with ken kramer, and jamie simon, camp director. jamie, before the break, we talked about what does a kid do at camp tawonga. what's a typical day look like as a camper? >> kids wake up together in a cabin. it's a group-centered camp. they go to a sports event, volleyball, archery, followed by an arts activity, drama, painting, music. the kids as a group have to agree on their schedule. it teaches consensus schedule making. they feel excited, tie-dye, we picked that as a

there he is, the backpack a black backpack may be the one that the fbi has been talking about since monday. suspect two comes along, we'll stop it right there. clearly, wearing a lighter colored backpack. investigators have urged people only to rely on the videos that they have released today, urging that they don't know whether others are legitimate. >>> on ktvu.com you can get another look at those photos and other released today. >>> the owner of a shop that sells running gear organized a vigil and a run. amber lee is live, the length of the run had significant. >> reporter: people ran three miles, one mile for every life that was lost. with candles in hand, runners prayed silently at the vigil. they say they may be injured in spirit but not in their resolve. many wore yellow and blue the colors of the boston marathon. they came from all over the bay area to honor the dead and the injuredded. >> - - injured. >> we're looking at the finish line right here. >> it's not clear, you have to keep going and just keep going. >> reporter: those who ran in the marathon tell us their emotions are

there he is, the backpack a black backpack may be the one that the fbi has been talking about since mondayighter colored backpack. investigators have urged people only to rely on the videos that they have released today, urging that they don't know whether others are legitimate. >>> on ktvu.com you can get another look at those photos and other released today. >>> the owner of a shop that sells running gear organized a vigil and a run. amber lee is live, the length of the run had significant. >> reporter: people ran three miles, one mile for every life that was lost. with candles in hand, runners prayed silently at the vigil. they say they may be injured in spirit but not in their resolve. many wore yellow and blue the colors of the boston marathon. they came from all over the bay area to honor the dead and the injuredded. >> - - injured. >> we're looking at the finish line right here. >> it's not clear, you have to keep going and just keep going. >> reporter: those who ran in the marathon tell us their emotions are raw but they're grateful their friends are not injured. >> when i see my f

so inside a metal pressure cooker, hidden inside a backpack. again, has to do with what at least one of the bombs that was found. you'll remember that we have been reporting that law enforcement authorities had issued a bulletin to other investigators to be on the lookout for someone who might have been carrying a black backpack in the area of the explosions right before they occurred. so this might go hand in hand with that. we also heard governor deval patrick of massachusetts announce not long ago that there were two bombs and two bombs only. he went on to say that another device that had been found or a suspicious package, rather, that had been found, was blown up as a precautionary measure. so he said they're working with two bombs. we don't have information at this time any or details about the second bomb that was found, michael. >> can didcandy, this is suzann. did the law enforcement official tell you significance of the information, if it -- the pressure cooker if it might have created more shrapnel or if this was a crude device and h

any pack a.m.s and backpacks that are left unattended. that is a major part of that effort. >> it does remind me of the days after 911 that when they said if you see something, say something. >> we'll be right back. these cool sliders. what's this one do? i dunno. the name's bear, fancy bear. score planner is free to everyone. free score applies with enrollment in freecreditscore.com fancy bear slider still in beta. >> and we now have a name for at least one of the victims of this terrorist attack. they are reporting that 8-year-old martin richard was killed. his mother and sister were also seriously wounded. and this is the moment when the explosion occurred. this video was taken by a boston globe journalist who was at the finish line. take a look. a wrooi . >> security is intensified across the u.s. an investigation is underway. joe johns is in washington and explains how different federal departments are working together in the investigation. >> in boston, the federal response has been enormous. the fbi which takes the lead roll is flo

pressure cooker inside of a backpack. if i was holding this. the significance is from what i am told from bomb experts, maybe bob knows this, it is much more complicated to pull off the pressure cooker bomb then it is to pull off a standard pipe bomb, which we have seen many times. they are mostly used in environments for the environment, whether it be the sand in the desert or the jungle, it would interfere with the explosive. that has been traditionally their use. that being said, these things are easy to find, easy to make. i don't have to tell you, you can look up on the internet and see the step by step instructions on to do that. and matter of assembling the various ingredients you would do to put it together. that to expand on what he was saying, they are getting a lot of evidence how the bomb was made but they don't have a lot of evidence about who did this or why. the actual evidence that would lead to the person or persons involved. >> this suggests a slightly higher level of them what was first thought yesterda

suspect the fact they're carrying backpacks.hey can look at their pictures one more time. >> suspect two has a hat turned around. number one wearing dark glasses they look, they're dressed like the crowd. >> yes. they look like very average guys. a ball cap turned backwards isn't something that would catch your attention. suspect two is the guy the fbi says they have on videotape walking up in front of the forum restaurant there and placing that bag right in the crowd filled with men, women and children. the bag he knew was filled with explosives augmented with ball bearings and possibly nails. >> greta: mike, thank you. >> you got it. >> greta: this week doctor skpdz nurses have seen unthinkable, children and adult was injuries found usually on the battlefield. >> what is the latest status of what you're dealing with? >> patients are doing pretty well. 10 patients still in the hospital, four in critical condition. but everyone has been and is improving. >> the investigation continue wez know waits a pressure cooker bomb tell wh

the backpack is in decent shape, identifiable as a backpack. it will be sent back to the lab.he label might still be on it, the manufacturer, make, the label still on it. that could be valuable. the pressure cooker is in decent shape. it's identifiable as a pressure quiching. normally on and on an ied the e unrecognizable. if the evidence is in that decent of shape, the rest might be out there. >> greta: if we both went to "inspire" magazine and looked at the directions at how to create a bomb, we both set out to make a bomb, would our bombs look a lot alike or is there a personal signature? >> well, everybody has their personal signature. i used to have one when i built ieds for the fbi the last 20 years. they play supplies wire a different way together, use different tape. everybody is an individual, even when it comes to building ieds. >> greta: so that may be sort of a helpful lead, if there's a design matching this bombing with perhaps another bombing. >> absolutely. the fbi will get that evidence, research all the components and see if they've been used in any other devi

it doesn't fit in the backpack correctly. so, i would probably say he is probably trying to act normal and it's probably making him walk just a little strange. >> eric: mark, we will let you go and say thank you very much for your time. i will go back to bill hemmer. something very important that was asked in that press conference. the question was is there video of suspect 1 and suspect 2 actually placing these backpacks which eventually detonated and the fbi the way i understood it, correct me if i am wrong, the fbi agent said we have suspect 2, the guy with the white cap placing a backpack which detonated. we don't know who placed the second backpack. do we, bill? does that mean there might be more suspects out there? >> bill: just to keep the story straight here. two explosions, two separate bombs, two separate individuals. the way i heard it described, suspect number 2, with the white hat is the one who placed the second bomb. the one that went off 12 seconds later. after that initial explosion, that rocked this course.

it was hidden in a black backpack. the simple bombs were responsible for 12 seconds of horror. cell phone footage shot by a spectator between the two explosions. authorities are going through race day videos frame by frame. here the white smoke seen after the detonation indicates a bomb built with low velocity explosive mixtures, not the more powerful military grade. >> they may not have had the resources as we've seen in other bomb attacks, but they knew how to make the bomb go boom. >> reporter: but tuesday there was a new plea for help in identifying the bomber. >> any individual who expressed a desire to target the marathon, suspicious interest in researching how to create explosive devices, the noise of explosions in remote areas prior to yesterday, which may have been used as tests by those responsible for these acts. >> reporter: the efforts to learn who is behind the bombing often require great patience and persistence. it took three years and only after the discovery of a tiny electronic part that authorities learned who was behind the bomb that brought down pan am fli

in that backpack were some sealed envelopes.ay this man crossed their suspicion radar by the way he acted, the way he responded to their questions. they felt he did not respond in a normal way. i'm also told that he made some deliveries at least in this office building. and it's possible this is the same person connected to the letter at the russell office building. i'm told those packages were accepted against protocol, which is why capitol police looked for this man, found him. and now i'm told by two officers here have him in a position where they are questioning him and they have id'd him. >> i want to be precise, you're in the heart office building, you go in there every day, i've done it many, many times. of course our capitol hill correspondent does it. you have to go through screenings. so what you're saying is they found someone inside with a suspicious backpack, some suspicious envelopes who actually is inside. that means he went through the screening process. is that right? >> -- yeah, wolf, can you hear me? i'm being

the man carrying a black backpack and the one wearing a white cap and carrying the white backpack. the men entered the picture walking several meters apart. they were walk being towards the finish line near the place where the explosions occurred. they think the man with the white hat placed his backpack on the street where the second explosion took place. >>> search teams are picking their way through the debris after an explosion at a plant in texas. it leveled homes and businesses all around the complex. 5 to 15 people have been killed. more than 160 injured and several firefighters are missing. >> at this point, they are in the continuation me of search and rescue. which to me, means that they are still going out, looking for survivors of the blast from last evening. >> more than 2,600 people live around the site in the town of west. the explosion burned homes all around. many are still smoking. police say more than 60 homes were damaged. many destroyed. but they've been challenged to assess the full extent of the damage because many are still burning. the plant stored ammonia.