we're back to begin another hour of kompl coverage of our bg news. it was just after 10:35 in manchester, uk, where the manchester arena tonight housed an ariana grande concert, and so they had a capacity crowd. 21,000 fans. mostly given her fan base, young women and girls. a lot of them have family with them. but it was 21,000 happy people in the north of england.

the house lights came up, the minute the last note of the encore had been played. ariana grande got safely off stage, when there was an audible boom and a concussion. we've heard various recordings, some of them from cameras in cars, some of them from social media. some people say there was more than one blast. that's a question for the investigators. we'll probably know the answer to that when we wake up in the morning. sadly, as you've seen at the bottom of your screen all evening, as we look at the pictures of the understandable panic that broke out to get out of that arena, which also was filled with the smell of smoke, 19 people were killed in this tonight. dozens injured in the blast. we're calling it dozens. the last figure we used, which proved rather inaccurate, was 59 injuries. that number, as all the patients get accounted for, as the people who were treated by first

responders, all get accounted for, is probably likely to go up. kelly was the first correspondent we turned to in our london bureau. she's still with the story, as morning is getting closer for the uk. kelly, what more do we know? >> reporter: actually, the sun's coming up, brian. it is dawn now here in the uk. started getting light about half an hour ago. this morning, now 7 1/2 hours since this started, sadly we're seeing on twitter on a #missinginmanchester, friends trying to find friends, in some cases relatives trying to find their sons, daughters, sisters, brothers. so in the chaos, after this explosion, a lot of families were separated and are still trying to reconnect another this early hour in the morning.

there are, of course, emergency numbers set up in the uk to deal with this sort of thing. but as you know, social media plays such an important role in situations like this. as you said, this was 10:30 in the evening. the concert was over. ariana grande had sung her last song. the lights had come up. one young woman who was inside the arena at the time told us that she and her friends heard a loud bang, very loud bang. they taught at first maybe it was a mike drop. then they thought it was a speaker that had blown. and were sort of laughing about it until they realized what was happening around them. everyone was ushered towards the exits. people had already started leaving. people were already pouring out of that arena when the explosion first happened. but in that initial confusion, fans inside were confused. they didn't know where the blast had come from. if it was inside or outside. as it turned out, as they found

out, as they left the arena, it was just outside this massive music hall. one man there to pick up his wife and daughter was fairly close to the blast and it threw him 30 feet. he was not badly injured, but the scene outside absolutely devastating. another person told us that she saw the effects of that blast as she left the arena. blood on the walls and blood on the ground. and lots and lots of injuries. lots of walking wounded. one of the volunteer paramedics said they were treating shrapnel-like injuries. those are the first sort of indications we knew this was not some sort of accident. this was not a problem with pyrotechnics. this was not something that went wrong inside the arena. this was some sort of purposeful explosion.

dozens of ambulances rushed to the scene. we now know that dozens of people have been treated. some 50 plus people taken to six area hospitals in manchester. the second largest city in the uk behind london. and we also have found out since that this did in fact happen, this blast happened outside the arena. it happened after the concert had ended. it happened in a public space. there was no security necessarily in this area. simply an open sidewalk, an open path. according to multiple u.s. law enforcement and other officials, they have told -- they have been briefed on this by the uk officials. they've told nbc news that this is now believed to be the work of a suicide bomber. they also believe, based on the forensic evidence at the scene, that they know who the bomber is. now, we heard very briefly from

manchester police several hours ago now, simply reconfirming that very sad casualty number, 19 people confirmed dead. and more than 50 injured. but no more than that in terms of the investigation, brian. that hopefully we will hear as the day -- as we get a little bit later into the day here. >> kelly, there's another aspect of this. i keep getting reminded every time i see the initial video of people reacting to the shock. this is right after the house lights come up at a concert, which is for the most -- the steadiest, most plugged in person you know, an incredibly disorienting moment. you've just come off more than one hour of music, and for these 21,000 fans, they're seeing ariana grande. they are -- they're altered by the experience. it's just a very emotional thing, and you're happy and

upbeat and then to have that shattered by this concussion, this sound, it's remarkable so many people were able to completely snap to and follow instructions. >> reporter: and we still don't know, brian, whether people were injured trying to get out of that arena. that is a possibility, because there was so many still inside, and there was such a rush to get out once this explosion hit. and also keeping in mind that there were a lot of young people in this audience. there were 11-year-olds 10sh s1 10-year-olds, 9-year-olds, teenagers, moms and dads presumably trying to keep their children safe and get them out as soon as possible. so yeah, this really stark jolt from elation, possibly the first concert for a lot of these kids,

soaking up what they had just seen, an amazing stage show, to a life or death situation. and really you're seeing a lot of that in some of the pictures that we've seen come out in the hours since this happened in the faces of a lot of those young people, outside the arena, being treated by paramedics and being helped by police officers. just some heartbreaking and powerful images, brian, of what it was like in the few moments. and then the few hours really after this happened. this was not something that was over in an instant. the pla this is something that's been playing throughout the night. again, people trying to reconnect, people being treated on scene, being taken away to hospitals. a really traumatic event. not just for the city of manchester, not just for the

people involved, but really for this country. i mean, you have to remember that this is -- if it is confirmed that this was a terrorist attack, and that is the line they're going down, this will be the most deadly terrorist attack in this country in more than ten years. since the so-called 7/7 bombings, july 7th, 2005. those four bombs, three on the tube, one on a double decker bus that killed 52. hundreds injured in those attacks. nothing like that has happened since in this country. this is the first traumatic and widespread in terms of casualty figures event like this in this country in a very long time. >> kelly, you use the word "elation." the word elation is exactly right. these young fans were, as anyone

is as a live music event, when you are a fan, they were elated and that's part of the tragedy here. kelly, thank you. we are talking in our studio, shawn, i wanted to talk to you about where this bomber was. yes, there's a lot we don't know. we're going on the theory this was a blolone terrorist bomber. that he might have been in a foyer, in kind of a common area. victoria's station, then you have the arena separated by two or three layers. might this have been someone heinous enough to have located themselves at an exit of these elated young concertgoers going home? >> i think there's a couple of things to look at here, brian. the perimeters of these venues have been hardened over the years, with the attacks we've seen throughout europe and at

the soft targets, the venue, stadiums, transportation centers. it's hard to get in. so if the adversaries, these terrorist organizations are changing their tactics to position themselves in an area where they do not risk being detected or thwarted from accessing the center, and they target -- position themselves outside. the attacker did not just hap n haphazardly walk into this concert. they targeted innocent children, young adults, teenagers. and they positioned themselves in an area that could cause the most amount of death and destruction. that improvised explosive device with the nuts and bolts, ball bearings, the type of device that is intended to wreak havoc and to really cut through people. similar to what we saw in the boston bombing where we saw so

many loss of extremities. people who were so severely injured. it appears that's exactly what they did. i'll add one other point. when you talk about a lone bomber, it appears in this case there was one bomber. certainly one that detonated. there could have been others who might have escaped. i'm certain that law enforcement in the uk, certainly in coordination with the fbi and the intelligence agencies in the u.s., are looking at a broader conspiracy. who else may have been involved? who funded this? who helped plan it? who helped to build the device that was constructed to create this devastation? they will absolutely be looking at that and looking at identifying the totality of a potential conspiracy. the number one priority right now is preventing deterring, disrupting any future attack tomorrow, next week, in the coming days. >> so questions as basic as where did he come up with the idea to do this? we're assuming it's a he.

where did you learn how to build a bomb? where did you get your ingredie ingredients? >> the investigation is focusing on determining the totality of the circumstances as you just described with the ultimate goal to identify and protect the citizens of the united kingdom. and maybe even more broadly throughout europe. understand that the intelligence services now are working so collaboratively, because the threat is a threat globally to all of us. the radical extremists are looking to target innocent civilians to raise their level of visibility and to promote their cause. and that spreads throughout europe to the united states and elsewhere. so these intelligence services are working so closely, anything that any allied service is finding, they are all working together. they've got their people on the telephone, they're on the computer networks searching for any information that might help the brits solve this. and ultimately help to make the world a safer place. >> one more security question. and i'll let you knock off for

the evening. how much of life can we police? what was it, the -- where was the bombing in europe where it was the departure lounge where it's not secured, brussels, i think. if this tonight was a public area where the public is invited, where there's no magnemagne magnetometers. >> would we make our country safer? potentially. but there's always a balance between privacy, civil lib 'tis and security. and we have to determine what the right balance is. so we're not going to completely secure our entire society. what we are doing, though, in law enforcement, with the intelligence agencies, is using intelligence to try and see what's coming around the corner.

to develop enough information to allow law enforcement to take actions to disrupt these attacks before they occur. that's the most effective way to make society safer and help to keep that balance between civil liberties and security. >> we also all need situational awareness. the last thing i'm thinking coming out of a giants' game is are we safe right here? usually you're talking about the game. >> i'll tell you, brian, i want people to be aware. i used the term -- i heard commissioner brattener, earlier, be alert, don't be afraid. i want citizens to have that awareness but to have confidence in the law enforcement and intelligence agencies. there are hundreds of thousands of brave men and women in the united states deployed domestically and ground balobal. they have thwarted dozens of attacks like what we just saw happen in manchester. it's because of the commitment, the sacrifice of those

individuals. it allows us to live our lives in a relatively freeway. we need to have confidence, support those forecast. they're making a commitment to keep us out of harm's way. >> sean hennry is now with crowd strike. he's gone electric, but a veteran of the fbi of many years. thank you very much for being part of our coverage. our chief foreign correspondent richard engel is enroute to manchester. richard? >> reporter: we are on the road. we are still just undern hour outside of manchester. it's about 5:00 in the morning here. this country is very much in shock. it is very angry. there is a so-called cobra meeting taking place later this morning. that is their meeting of their security cabinet to try and figure out how to respond to this, if there is a way to respond to this. and we're hearing more about

what happened at the venue. the concert had just ended. the house lights had come up. and people were starting to leave the concert hall, 21,000 capacity. it was a crowded concert. and as people started to stream out and make their way toward their family members, their rides, their friends, their loved ones, they heard this very large explosion that shook the area. it happened as -- right where people were supposed to meet their pickups. some people started to run back into the venue. others who were inside the venue didn't know where the explosion had taken place, so they were still trying to run outside. people described running into each other, climbing over equipment, fences inside the venue. people getting pushed over,

toppled. then there's the major issue of families getting separated. and there have been several hotels in manchester where people have been told to gather where they can try to reunite with their families. taxi drivers were coming by, volunteering, offering people free rides to get away from the area. there's also been online a campaign to house people, because people couldn't necessarily get to their hotel, didn't want to leave the area if they were still looking for their loved ones. but as of now, the death toll, haven't heard a lot from the police. one brief statement and the death toll has remained consistent at 19. >> richard, sadly so much of your trip upon arrival will be so familiar, because we cover way too much of this sort of thing, especially the notices on social media tonight, which are just heartbreaking of family

members who have yet to account for a loved one who was just an ariana grande fan at that concert tonight in manchester. richard, safe travels and we'll be watching for your coverage starting when you get there. richard engel on the road, on the motorway to manchester. he's about an hour out from arrival. a break for us. we're going to come back. we're continuing to cover two prongs of news tonight between the ongoing political story, and this terrible tragedy in manchester, england. there's nothing more important to me than my vacation. so when i need to book a hotel room, i want someone that makes it easy to find what i want. booking.com gets it. and with their price match, i know i'm getting the best price every time. now i can start relaxing even before the vacation begins. your memorial day weekend is very important. that's why booking.com makes finding the right hotel for the right price easy. find great deals now at booking.com.

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i'm the chief consulate of manchester police. i can confirm the details as we currently know them. around 10:33 p.m., we received reports of an explosion at manchester i reena. this was at the conclusion of the ariana grande concert. currently, we have 19 people confirmed to have lost their lives in the explosion, and around 50 casualties that have been treated at six hospitals across greater manchester. my thoughts are very much with those that have been injured and lost their lives and their loved ones at this terrible time. we are doing all that we can to support them. this is from greater manchester police and emergency services are working at the scene and supporting those affected. we are coordinating the operation here at greater manchester police headquarters. an emergency number is available

for all those concerned about their loved ones or anyone who may have been in the area. the number is 01618569400. we are currently treat thing as a terrorist incident until we have further information. we are working closely with national counterterrorism policing network and uk intelligence partners. this is clearly a very concerning time for everyone. we're doing all that we can, working with local and national agencies to support those affected. as we gather information about what happened last night. as you'll understand, we are still receiving information and updates so we can provide further detail when we have a clearer picture. i want to thank people for their support and ask them to remain

vigilant, and if they have any concerns at all, to report them to the national anti-terrorist hotline. the number is 0800789321. it is important also that people here in manchester avoid the area around manchester arena so that emergency services can continue to effectively deal with the incident at that location. thank you very much. >> that was the only on the record statement we received all evening or will be receiving, as kelly mentioned, dawn has broken over manchester, and now we will have a couple hours where we'll probably before americans wake up in the morning learn a lot more about what has happened. this puts us at the nexus of kind of geopolitics and suspected terrorism. we want to bring in our guests

who can talk about both. jeremy bash is with us. again, former chief of staff to the head of the cia. former chief of staff to the secretary of defense. eli stokeles has been kind enough to join us again this evening. jeremy, i tried this question to juan with limited success. you're part of this trip. you are tasked with briefing the president tomorrow morning, israel time. what do you tell him to say, what do you tell him to avoid saying? >> first of all, we are all britons tonight. and for our citizens, that's a feeling, brian. but for the professionals in the intelligence community, who the commander in chief will oversee, it's a business model. what i mean by that, we have to put ourselves in the shoes of our friends, our allies, our cousins in the uk intelligence and law enforcement services.

the mi-5, the mi-6, the police forces and the other elements that are responsible for protecting the public and working with international partners to stop terrorism. what would they want us to do? i think fundamentally what i would say is mr. president, number one, they want us to reach out to the people of the uk, express condolences and sorrow and also express resolve in the face of this and other attacks. second is, i wouldn't want to speculate publicly, privately or to anybody else about who conducted this attack until we know the facts. and third, i think a general message about standing shoulder to shoulder with allies against the forces of terrorism is appropriate. beyond that, we don't want to hype the threat too much. it's most important for the president to continue his discussions with israeli counterparts today. not cut his trip short, alter his trip in too many ways, go forward, go to europe, stand with our allies there, talk about the range of challenges that we confront including the

challenge from terrorism and other threats we face around the world and carry on the business. the motto of keep calm and carry on is something we should adopt more in our own country and government. >> this question is not underpinned with any knowledge of who might have carried out the attack, but the phrase radical islamic terrorism. the president, then candidate trump, used it to mock, to goad his opponent, to criticize his opponent. did he use it on this trip himself? >> no. in fact, he made a point of toning down the rhetoric and taking a much more moderate approach on this subject, which was really featured in the speech that he gave in saudi arabia where he opened -- helped open a terrorism -- anti-terrorism center there. we saw all the pictures on the front page of the paper this morning. this is a focus now for this president who perhaps is better understanding how rhetoric can

enflame some already enflamed and complex situations worldwide and how it is best to tone that down and stick to a script. but this was just one speech. we'll see what the president says if he gets back to tweeting about this over the next couple of days as more is learned about who carried out this attack. i think you have to view the speech in the context of the larger message the president was sending to the arab world, siding with some sunni arab regimes and really targeting iran and muslim shiite terrorists. and really picking a side here, something that we certainly didn't see during the obama administration. it's a new sort of move for this white house, and it's much too early to know anything about what precipitated the attacks in manchester tonight. but the terrorists we know are very aware of and attuned to propaganda and messaging, and so what trump says does not exist in a vacuum, and a lot of when

they do carry out these attacks, they are doing it knowing they are going to generate a lot of reactions from world leaders, and motivate people to their cause and harden the resolve of people fighting them, as well. >> ely, i heard somebody on cable earlier say man, if we hadn't just been talking about this whole thing for ten days, this would be a huge story. they were san diego it jokingly. "the washington post" is outlayed with a huge story. how would you summarize its central holding? >> the lead of the story is back in march, president trump asked two senior intelligence officials basically if they would end the investigation, the russia investigation, just as he reportedly ask former fbi director james comey to do. and again, today when the story came out late this evening, there was no denial from this white house, just like there was no denial from the white house

that he said the things he said to comey. and so i think what you see is, as the sort of -- the talk of obstruction of justice and an investigation, now there's a special counsel appointed here, the talk is rising, and the evidence is trickling out too through the press. whether or not these investigations, people testify publicly or not, the information is getting out. and there were a lot of people tonight talking about the fact that comey himself has decided for now not to testify publicly. some people may be disappointed wanting to hear more of what he has to say. but more seasoned observers have noticed that and said that is a sign to them that perhaps special council robert mueller is very serious about following this towards sort of an obstruction of justice charge, if one is there to be made. and he doesn't want comey's information on the record just yet. so were comey to testify

publicly, not good for the white house. but the fact that he is pulling back, that could be more ominous for this president and administration. >> we just passed the half hour mark and i want to widen our conversation by one and bring in ken delaney of nbc news, who was on this story before he had to start reporting the terrorism story tonight. ken, so many veteran washington hands who have been hired by presidents have said to presidents in one form or another about the kind of standing government in washington, the career folks. they were here when you got here, and they'll be here after you're gone. this president had a higher learning curve than anyone before, especially in areas like the intelligence community. he went to war with them. he went to war with them over twitter. the relationship has been fraught. so there's no other class of people about whom it can more accurately be said they were here when he got here, they'll

be here when he's gone. >> and they are fighting, brian. we have seen an unprecedented level of leaks from the oval office, from the national security intelligence, from intelligence agencies about very sensitive matters, whether it's the president's conversation with the australian prime minister or now these conversations with senior intelligence officials. i was able to confirm this great washington post story by calling a former senior intelligence official who i knew would know. his take was not quite as nefarious. he said look, this wasn't necessarily obstruction of justice. donald trump was asking them men to confirm what he knows to be true. he just didn't understand how inappropriate that would seem to intelligence officials. of course, one wrote a memo about it. they told others. they said they were disturbed by it. and then it leaked. by the way, both will be on the hill tomorrow testifying, so the story is not going to go away. >> jeremy bash, because you're out of government i can ask, i

guess the philosophy of the leakers will be much debated. i heard one of "the new york times" reporters last friday say that the people who have been leaking to them are both appointed and career, but they have done so, he thought, uniformly because they had seen things they didn't think were right. it would take a lot, would it not, given the people that you know in the intelligence community to leak secrets because they're seeing something so bad, so potentially harmful and so alarming to them? >> let's be precise here, brian. i think telling a reporter something like the president tried to convince the dni or the nsa director to talk about the president's innocence, that's not a leak. that's not a disclosure of classified information. we're lumping everything together as leaks. if you did an anatomy of the

leak, you would find a lot of different varieties. you would find some of them are bank shots. you would find some people who work in the twhous. i think -- in the white house. i didn't see that when i was in government. i would bet my bottom dollar that's not what is going on here. but let's just zoom back here a moment. when an american president travels, the world does not stop. we saw a terrorist attack tonight in manchester, the worst terrorist attack in that city's history, the deadliest terrorist attack in england since the 2005 bombings. the president has with him on air force one as part of that traveling package a cia analyst, maybe more than one, who is prepared to walk into his suite in the king david hotel tomorrow morning or maybe he'll take the short ride over to the american consulate in jerusalem into the western part of the city and sit down and provide him an

intelligence briefing. he needs those people. he needs those analysts. he needs those counterterrorism officials and he needs them to do the job of protecting the american people and our country. i think the quicker he can get back to the place of trusting them, the safer we'll all be. >> what a great point to end this discussion on. jeremy, ely, thank you for staying up with us tonight. some kind of extraordinary circumstances. ken, he works here. he's got to be here in the studio for a while. thank you, ken. another break in our coverage. we're back with more right after this. ♪ ♪ i'm dr. kelsey mcneely and some day you might be calling me an energy farmer. ♪ energy lives here.

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we were in the arena, when we heard this bang and i run for me life. >> who told you it was a balloon? >> staff. they stopped us from running. >> how did you manage to get out? >> they told us -- a few minutes later, ambulances came. >> did you see people who were injured? >> no, but i saw someone outside that was covered in blood. >> interesting interview. they always are. a woman obviously in duress after witnessing what she witnessed, but it reminds me

early on in the coverage before we knew what we had here, before the word terrorism was being thrown around, when we just knew there had been a loud bang, maybe more than one, people were theorizing it had been those large, pink balloons that are visible in some of the shots of the audience just after the house lights went up. they were part of the show, kind of bounced out in the pit area. it's i guess not surprising to hear that an usher or a guard said, i think a balloon popped, when quite obviously it was something so much greater and so much more evil. our own ken remains here with us in the studio. ken, you covered the 7/7 bombing. i always said i don't think -- well, 9/11 was known the world over, i don't think americans quite understood at the time or since what a colossal event 7/7

was, a punch to the british gut. >> shattering. it was july 7th, 2005. 52 people killed, 700 wounded. it was a bombing of the transportation system, both the tube and a double decker bus. and what remains with me to this day. i was running around london as a newspaper reporter from philadelphia. by day's end, londonering were commuting back home on that same tube. it was a story of resilience. when you talk to u.s. officials here, they will say privately these sorts of terrorist attacks against soft targets cannot be defended against 100%. they'll stop a lot, but some will get through. the important thing is for western democracies to learn to go on, to not be terrorized. i think we'll wake up tomorrow to some horrible stories, very tragic, heart rending stories of children dead and wounded. but i'm hopeful we'll see a resilient britain tomorrow,

defiant in the face of terrorism. >> i think the brits helped to write the book of resilience. you think about manchester. if memory serves new year's eve 1940, several tons worth of bombs were dropped by the germans onto manchester as part of a multiday blitz of just manchester. that city, that whole country, it's as i think someone said earlier, born into heavy industry, but it has modernized with the finals. it's changed with the times. always a place where you'll find great people. >> these are tough people. they've been through terrorist campaigns before and they will show us the way, i think, brian. >> let's hope so. juan remains with us, our senior national security analyst, and former deputy national security adviser to president george bush in the area of terrorism. juan, if you were in charge of

the investigation, if you swooped in, gathered the evidence they have there tomorrow morning, where do you think you would order them to go? is it as our friend jim pointed out, kind of concentric circles starting with the crater of the blast, the seat of the blast, and what's the chance that these reports that they already know who did this are correct? >> i think that's exactly right. i think you start with the blast site itself. you start with the perpetrator. you try to gather as much forensics as you can from the -- from that point of the attack on out. and once you have the identity, and it could be that the british have the identity either through a fingerprint, dna samples or some other identifier, that you then -- you're then able to expand those concentric circles and then able to identify social

networks, family networks, work history, travel history, communication patterns. all the digital dust that surrounds an individual then becomes part of the investigation. and so i would say let's gather as much information as we can from the site. let's work from that site out. let's try to gather as much bits of data as we can about him and his social networks and try to net fie if there's anything else to this plot, to the support network. i think one element of this, brian, that we haven't commented on is unlike what we saw in paris and even brussels and maybe some of the other attacks, the silver lining here is that it could have been worse. this attack happened not inside the venue. it didn't happen with multiple perpetrators. there weren't a sequence of attacks. and so we'll want to understand more about this.

but certainly the fact that this was a singular attacker was helpful to keeping the death toll down. but we'll want to know more about the support network and anything else that's tied to this attack. >> wishful thinking, if it's wishful think thing is a singular attacker. god forbid, there's someone else whose next action is timed for a couple of hours after this detonation. that's the question for fguys i your line of work. how much more ability do you have to, let's say there's a couple dozen known figures in the uk, to lurch back into their lives in a big way? >> i think british authorities are very good, some of the best in terms of not just intelligence gathering, but security activities. so you're going to see a series of actions, no doubt around

potential suspect actors. whether or not they were involved in this attack or not, as we talked about earlier in the evening, brian, there have been a number of arrests made by british authorities in recent weeks, especially in the wake of the westminster parliament attack. so you'll see british authorities tighten down on suspected actors. you'll see further arrests as a means of both disrupting and creating more information. and you're going to see an attempt to try to understand if this attack was tied to anything else that the british are concerned about. u.s. authorities no doubt are worried about not just this attack, but the pace of these attacks happening in europe. the fact that it's manifested again here in the uk. and given my conversations with u.s. and british authorities, the concern that this isn't the end of the story, of course. that there are others out there willing to perpetrate these kind of attacks. and there's only so much you can do in an open society to secure

open venues. we don't want to live in a security state, certainly the british don't want to. and so that entails trying to gather as much intelligence on the front end as possible to prevent attacks and find who may be willing to attack fellow citizens as perhaps we saw this evening. >> juan, thank you for your time and expertise. we'll fit in another break in our hive coverage. but when we come back, the man we always find ourselves talking to whenever explosives sadly are involved in an event like what we've witnessed in manchester, england.

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welcome back to breaking news coverage. we've just been handed two covers from tomorrow, front pages. manchester news and the "new york daily news." both of them have the same still photo on their covers. manchester evening news, subheadlines are, and this is how it's being covered as a local news story, a tragedy. at least 19 killed in blasts. teenagers flee in panic from gig. police treat explosion as terrorism. they call it manchester's night of agony. and truly it was. ariana grande has a very young, mostly female fan base. it's clear watching the pictures, they were all there.

21,000 ariana grande fans. and a lot of them with their parents. and what was an absolutely fantastic night, as someone just reminded me. for a lot of them, the biggest problem leaving that venue was it's a school night, got to rush home, get to bed, how are you going to get to sleep after such an emotional high at a concert? that's what resulted, parts coming together, missing people, from ariana grande tonight, this tweet. to all her kind of traveling family, all of her fans, all over the world, she has so many of them. hugely popular guest host of "saturday night live" this last season in this building. jim cavanaugh is a retired atf special agent in charge for over three decades. jim, the part of your occupation that i don't know how you did was arrive at something like

this, 19 souls are gone. a happy occasion. your job is to examine what's left. examine all the clues and signatures you can to figure out who did this. >> right, brian. we trained police worldwide, atf did, on how to do these bombing investigations we've trained the uk police, we trained police all over, because we did so many bombings. we used to have a lot of bombings in america. we had bombings of union strikes, criminal bombings, klu klux klan attacks, boyfriend/girlfriend murders. they've subsided to be mostly terrorist related, but for many years, we had many large bombs all over the country for different reasons. but we talk about satellite spinning and the great work of our intelligence officials and

the president being briefed. that's so important to understand the global connections, but really at the granular scene, we go in there and we get the guy's wallet from his blown up, bumped out pants and we pull out his driver's license. more often than not, even with terrorists, they have an i.d. on them. and that's where we start. if it's not there, finger prints are gathers, prhotographs of th remains that are left, and you are going to quickly pass that on to your intel professionals, your analysts, and they're going to start all that process that we discussed tonight. but you're then going to go to that scene, brian, the flat where this guy lives with the crucial question for the commander is, you know, is there another plot afoot? is there other people involved? and is this the bombmaker?

is this the bombmaker? he delivered the parcel. it was on his back, and the other question is, did he know it was there? you have to know these things. did he detonate it with a switch? was he told to carry the parcel and someone else could have detonated it. all these questions are there. but in that apartment where he lives, is there bombmaking material or is it clean? was it made at another place or made by another actor? those are key questions for the uk police tonight. >> jim cavanaugh, just one of our experts, the voice of three decades plus experience in a gruesome field, but one where we have to hope all peace loving people tonight have to hope that science is on our side and we'll find out who did this and why. thanks to all of our family of contributors, reporters. our coverage will continue at the top of the hour.

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we have just turned into the 11:00 eastern hour here on the east coast. for all of you joining us of the lerchth hour, we want to let you know we will be talking about the president's day, his travel, the go politics that form the backdrop of today and at least one devastating newspaper story tonight about the still new trump presidency. we will get to that in just a few moments, but, first, the reason we have been in live rolling breaking news coverage tonight, the word that at the manchester arena, the lar