and notable for three things. it is optimism at a time of great anxiety. his surveying all of human history and saying how grateful it is to be alive and in the fight for justin and lastly the belief that the country will be okay. that it will get to the place that he needs to be. and we have missing from our politics today is that sense of optimism and hope. and it is a great speech to watch tonight. >> and something to put this moment into its appropriate context, to put this moment into its appropriate anchor, i'm going to hand things over to brian williams. but i first want to thank kara and tom and steve, charlie, and so we'll stay on the story and please stay with us.

nicole wall lale wallace, t. for all the folks tuning in, we must explain that our attention is focused on the youtube corporate campus san bruno, california just south of san francisco. and that is because if you have been following any of our coverage, you know already this is the latest scene in this country of the new term the art, the active shooter, this is not a drill, sadly law enforcement mass converged on the youtube campus because of reports of shots fired. there are a few things to point out as we watch what is now going to be this familiar endless loop of aerial photograp photography. most of it like what you are looking at now live, but a lot of it will be taped from earlier when the helicopter first arrived at the location. we have seen a notable absence

of urgency because this is a tech company and because this is 2018, you will see one thing that all of the evacuees have in common, they are all looking down. that is because everyone who works there is on their phones. if you have a guys, you hadevic read all of this on smooed. a smooe smooed. you have read that the begun man is a woman. we don't have confirmation of that.

you see a whole lot of law enforcement in all of the tributary, streets in and out of this area. our own tom winter has been listening to scanner traffic in san bruno. san bruno pd and the san francisco metropolitan area at large, tom, what are you hearing that may fill in the blanks? >> well, at this time we're just getting really kind of more sells of information. we're not really getting a lot of a narrative. we're not seeing urgency. i think that shows us that whatever it is is either contained or is over as far as the shooter or shooters. you mentioned something before that is not confirmed, that it is possible that the suspect in the shooting is a woman. and i cannot think of a recent mass shooting in this country that has involved a woman. in most cases it is a white male

that we see as the shooter. and so this would certainly be a first in modern thoirs if histo fact this shooter is a woman. i can tell you that the counterterrorism unit is closely monitoring the reports of the shooting incident here at youtube. and i can tell you from the police scanner that there have been reports of numtro rounumer transported. we're starting to get our own confirmation of that as we learn that stanford hospital is expecting four to five patients. and the zuckerberg general hospital is also receiving patients from u tuyoutube headquarters. so we don't know their injuries. we don't know if they are from the shooting. obviously when a shooting like this happens, sadly as the

active shooter phrase has entered our lexicon, everybody knows to run if possible to get out of a possible shooting situation. and so sometimes there can be injuries associated with that. we hope that is just the case. but right now we don't have sort of a sense of the injuries that we're facing here and we don't have an official all clear that whoever may have been responsible for this is in fact in custody or has been shot themselves or shot themselves. so that is the situation that we know right now. we know that we have a very significant law enforcement response at youtube headquarteheadquarters and we're continuing to monitor it. i know that myself and my colleague have been workings phones as well as listening for police chatter out there. so far the local authorities have not transmitted information more broadly. usually that happens, but depending upon the situation that might not happen for a

little while here. so at the moment, all we know is that there is a report of an active shooter. we know we have injuries. and we're waiting for more information from law enforcement. >> thank you very much. and keep listening. we know that listening to scanner traffic can be deeply unsatisfying because at this point after the initial reports and units have been disdispatch it becomes about status checks on individual ichbtscars and personnel. you see a still life where life kind of stopped. some chairs scattered about, a vacant basketball court. this is one of the great worker friendly campuses to be assigned to. because it came up in the modern age of creature contramforts.

young people spending vast number of hours at work, so make it pleasurable. the campus is right up against wildlands in san bruno. the back end of it goes right to wildlands. there is a gate around it. and we showed the pictures of the police doing tsa-style patdowns. one by one there is only one officer doing this. that is to make sure that everyone is who they purport to be. that is to make sure that even though they are wearing a youtube employee badge, that that is so you can rule everything out and a process of elimination. one of the law enforcement announcements we've received in the last few minutes is that the atf san francisco field division which is sizable is sending men

and women there testimony to. tom, you have a detail? >> yes, getting some information filtering through law enforcement xhun trite nocommun. the scene is still active. at this point there are no reported fatalities at this time. so that is important. but again, this is bliis prelim. and we have people at a hospital. so this is just blim information from t preliminary information. still active and law enforcement at this point believing that the female -- that the shooter is in fact a woman. and that is very unusual. so we're starting to get a little bit of information from law enforcement again that is from a senior law enforcement official to nbc news that we are still dealing with an active scene. meaning that law enforcement is still in the process of going through that building and the process of trying to get a

preliminary sense of what happened. good news and it is early that there is no reported fatalities at this time. and there is a growing belief that the shooter that was involved in this incident was a woman. so that is just the very basic information that we have at this point. >> tom, again hard to reconcile word that this is an active scene with augull available aer photos. i think i have seen two members of law enforcement walking any faster than a stroll. so perhaps where it is still active, if it is still active, it is deep within the campus and everything else has been declared secure or locked down. but as tom was warning, as we always warn in these situations, so many early reports can be wrong. one more note. youtube was last in the news, we

don't know that this is germane at all, but their announcement to ban videos that promote or link to websites selling firearms and accessories including bump stocks. youtube said it will prohibit videos with instructions on how to assemble firearms. as you know if you spent anytime on youtube, no matter what your hobby or favorite thing to do is, there are thousands of videos tailored to you. and just saying this was the last time as a corporate entity youtube was in the news. pete williams is in our washington bureau. he can add to this. pete. >> the federal response is very slow at this point. largely because of the san bruno police, california highway patrol and the county authorities have the lead on this. so the feds are offering their

assistance. but at this stage what they will be doing is providing any investigative work that has to be done once the building is cleared. which is the responsibility of the first responders. in this case the local authorities. so the information 234r0e to the federal folks that we would normally hear in right now just hasn't gone in that direction yet.normally hear in right now hasn't gone in that direction yet.federal folks that we would normally hear in right now just hasn't gone in that direction yet. but once it is cleared, fbi and atf can help the considerable manpower that they have already do all the investigative work that has to be done to build a case. all the informatiforensic, ball work, where were shots fired, where good thdid they come from on the suspect. so they are on scene in standby mode. this is standard protocol, they

will set up a command center that will coordinate all of the various agencies that are there because you've police, county sheriffs, chp, fire, you've got ambulances. you have emts, you will have the feds. so that is to come in the subsequent hours. so frankly when the federal authorities are more in the picture, we get more information flowing faster. so that is why we really in terms of the people we normally talk to every day here in washington, they are basically in the receive mode right now. >> thank you. cakara swisher is with us by telephone. have you baeen able add to anything further since your conversation with nicolle wallace? >> no, just that the shooter had been disabled in some way from

what i understand. it was in the building. and that several people have been shot. we hear people from inside youtube. but again, you have to get that confirmation from police or the company itself. but i think nothing more than except that they are shook up by this and had not expected it. the campuses are very easy to get into. people -- they try to create an open environment as a workplace, very uplifting workplace. and so i think this will be a real blow to the way people work in silicon valley for sure. >> i have been folds sintold the received confirmation of a female suspect down and deceased.

so for all the historic reasons that this would be so highly unusual. you made a point i'd like to go back to. for all of us working in a depression era building in midtown manhattan that was built for the era and has been retrofitted somewhat, this youtube campus was part of the new wave. we easterners all looked at it with wonder. they had stationery bicycle, comfortable furniture, actual food for the employees for the taking. and i'm guessing that this is right up there with among the very best. >> yeah, it is. i just was there speaking at youtube to the employees. i went there to talk about the press and youtube challenges. and so it is a very open environment, very colorful, they have big screens and videos.

an actual slide. outdoor areas to eat, basketball courts. and this happens to be a very small campus compared to google which is a very large collegelike campus. this is just a building on the street. and kept there because youtube founders wanted to be run separately and google agreed that youtube even though it is owned by google, that it should be run separately. so they tried to cultivate a different culture than other parts of google. >> kara swisher, thank you. it's been great to be able to have your view point and your reporting. this is a mohorrendous story. and we want to show you a witness on local news speaking to our san francisco san diego. >> -- other guy pressed the leg. and then i went back out,

looked, back up the stairs. and the other guard was up there. another employee was -- i ran into him and he opened the door. i looked inside. and the other lady got shot inside the courtyard. she was on the other side of the table laying on the ground. but that person got shot ten times nonstonp. >> and when you make the references to the stairs and courtyard, do you mean of the youtube headquarters building? >> yeah, inside. because like i say, the person shooting, you could feel the sensation from the shots through my body. >> the -- you're saying you saw two women shot, the first one who came into carl's jr., was she hysterical? >> asian girl like around 30 years old. put her inside the building. went back. kept loading. went back up to the stairs. went up to the gates and then that is when i met the other guy and then goes oh, she is dead

too. and they were having a -- a guy who was out of it, he was flipped out, like that person was shot there. and then that was it. and yeah, so -- so i seen two people that -- the girl shot shot and the other girl she is dead. because she got shot at least ten times. >> she wasn't moving? >> no. no. she was on the ground. and then the cops came and everything. and then they started like surrounding her. looking for the shooter. and i don't know what shooter -- where the shooter went. >> you only heard the loud gunshots? >> oh, yeah. it was massive. it was nonstop. that person -- the second person was dead. >> the woman who got shot in the leg, was she taken away by pair medics? >> yeah, but everything took a long time. when i got here, there was nobody here.

everything was behind me. and that is when it went down. >> what about any security, did you see any security guard, did you see anybody? >> no. no. there was one guy. and he didn't have no gun. didn't have nothing. >> describe to me the thought process your emotions. everything happened so fast, but at the same time, stos frin it frirtdenning. >> yeah, but it didn't scare me, you know.8on frirtdenning. >> yeah, but it didn't scare me, you know.

>> thank you so much. we're glad you are okay and sorry you had to experience that. thank you so much. that is a lot of what we're hearing from folks here. word of mouth, their experiences just being in this area when these reported gunshots were happening earlier in afternoon. we'll send it back to you for now. >> that is nbc in the bay area our station that covers san francisco and silicon and what you heard was a shocking tee picks shock ing depiction of a guy around back of a carl's jr. that is adjacent to the youtube campus i won't say witnessed because he was trying to describe the concussion of multiple gunshots that you can feel when a large explosive goes off near you. but he certainly was there when

at least one wounded woman as he described her and then he described in an open courtyard multiple shots fired at another woman who he seemed to indicate was visually doa. again, just these are ordinary folks. out there on a tuesday at the tail end of lunch hour. a beautiful bay area day. and suddenly they are trust into a tragedy, a trauma, and this ongoing national debate over guns. nicolle wallace is here with us having made the trek up from her studio. your roots are out there. this is now kind of beating tech kalg harts heart of the beating of our country. >> so grim. you've been doing this a lot longer than i have.

but i think this is at third active shooting that i've covered simply because you it took place during our hour. and we bring it when they happen. and for the third time while an active shooting situation is ongoing, it is the voitss in vow enforcement, the voices of people like jim cavanaugh who bring the conversation back to guns and how easy they are to purchase and how frequent they end up in the hands of people who are either mentally unstable or shouldn't have the right to get them. if political people were to drive those conversations from either side, i think in the past it's been viewed as being in po poor taste. but to hear former atf and fbi efficients a officials and police

commissioners call for a conversation or reforms or measures to make guns more difficult to obtain from people who wish do harm either at a school or people in a workplace is one of the most stunning i would call it an advance in covering these events. >> and of course this happened in the wake of an enormous march in washington. an enormous national efforts. 800 of them marches in other countries. all about gun violence. today's story does have a difference. and that involves gender as i said earlier, if you have a device you're following this on, you you saw early on the rumors that the suspect was a female law enforcement has since confirmed that for us.

so i thought we would bring this question to clint van zandt who is always of counsel to us during moments of coverage like this. just how rare assuming it goes as confirmed and this is a woman who did this damage, just how rare an event would this be? >> i looked at one study of 96 mass murders that have taken place in the jununited states, y two committed by women. and skroeof course most of us r the shooting in san bernardino where it was a husband and wife team. normally we see women acting defensively with violence most of the time where men will act offensively. that is -- whether a te testosterone issue or what, i'm not here to comments on that. but it is very rare that we see a woman act out like this.

usually women wind up much more the victim in a workplace violence situation where sometimes domestic violence spills over into the workplace than the actual shooter herself. >> and what then if you learn an identity of the shooter that is down and deceased, what is your first step from there when you are holding her i.d. in your hand? >> well, one of the things of course we want to make sure there is not another shooter, that she is not working in connection with anybody else. this is just as it usually unfortunately is, it is one person who is going to be involved in this. and then the short authorities try to determine motive. why did she do this and is there any other plot going on. for a woman to act out like this again, it is normally something that has to do with either she may have been terminated, she may have had some situation domestically within the

workplace, but it is awfully rare that we see women commits an act of violence much less a mass shooting like we're told. so i think we have to look at the distinct possibility there may have been a particular target, a particular victim that this shooter went in looking for and once they shot that person or another, they may have felt that they accomplished everything they wanted to. but begin, we're told this victim is down. is expired. that may account for quick law enforcement response before others could be injured. >> clints, thathank you. pete williams may have more to add. >> and just to foul on whllow o are the next step, we know this, they will get a search warrant to search this person's home or

apartment. they want to know if anybody else was strofed here. this person had other weapons. was there preparation. who was she in touch with, all that assuming takes woman heit here. so that is work that they will follow through. the initial picture, that first reports are often wrong, the picture 150e78s to seems to be s initially seems to be sort of a combination between a workplace shooting and a domestic violence thing where it does appear from at least the very 34riprelimina information that somebody was targeted intentionally. but that is to be lirned in teae coming hours. and we have heard a number of different accounts of how many people were injured here. the only thing that we've heard

in terms of the number of fatal is is the assailant herself or himself se himself, we've not heard ever any other confirmed reports of fatalities. we have heard of a number of injuries, but we don't know what the nature of those injuries is. we assume that they are gunshot wounds, but we have seen in past scenes that sometimes people are hurt just trying to get out of wait. trying to clear the area. so that could be part of this as well. >> and we're showing you a three box. and in the upper right a few moments ago we had two officers running by our camera location with great urgency. that was video tape. and it is not representative of

television since the top of the 5:00 hour, we've been remarking smefrkly at how calm the situation seems in all our vantage points. so any of the urgency were pictures from earlier. we're joined here in new york by i have to say a man we only see, we only get to talk to days like this. we're reacting to yet another mass shooting. bill bratton here with us. commissioner, you mostly have been a cop all your life. and arriving at a situation like there are going to be either approached by someone or say instantly did you know her, why would she have come back to this workplace if she is an employee, did she ever a beef with anyone,

was there is a squirrequarrel. >> and as you know, the first story is never the right story and it is not the last story. so the speculation at the moment because it is a woman that we tend to focus on the idea of vi bullying possibly, pete will ias talked about going to the home, making sure there are no victims at the hoeme which we have seen. undetermined at the moment. and the the number of victims that apart from the individual herself, did she shoot herself, did law enforcement, did securities. were they shooting at each other. most of these types of environments have requirement also that you cannot bring a

weapon on to the workplace. my office for example you are not allowed to have weapons in the location. so there is a lot of moving parts at the moment that i think charity will come very quickly when the police finally and hopefully relatively soon get out there and give some information for such a major story, the fact that it has taken at least get a talking head in front of the cameras major mistake on their part. >> and i've been handed a statement that they say that they will be making a statement at 5:30 east coast time. so they refrefforting getting s rank to a camera. and this always happens.

you have san bruno local -- this may be our briefing help let's listen in. >> we closed access to the emergency department. to everyone except patients. that is all it means. we are still on lockdown it is standard for multiple casualty injuries like this, yes. >> you can telli us what you received and who they were? >> we received three patients so far. two females and one male. we have one person in critical condition. one in serious condition. and one in fair condition. >> critical is the male? >> correct. >> one woman is in serious, one woman in fair in. >> yes about that. >> ablgs 32, 27 and what? >> and 36.about that. >> ablgs 32, 27 and what? >> and 36.ut that. >> ablgs 32, 27 and what? >> and 36.hat. >> ablgs 32, 27 and what? >> and 36.at. >> ablgs 32, 27 and what? >> and 36.t. >> ablgs 32, 27 and what? >> and 36.. >> ablgs 32, 27 and what? >> and 36. 36 critical, that is the male. [ inaudible question ] >> what parts of their bodies? yes, but i can't say that.

>> when you are expecting more people, are you expecting more people in critical condition or serious condition or to we know? >> honestly, i don't know the conditions of the people.dto we know? >> honestly, i don't know the conditions of the people.o we k? >> honestly, i don't know the conditions of the people. at 3:30 we will convene again offering a trauma surgeon to explain in greater depth what the injuries are and what the conditions of the patients are. >> your name? >> brent andrew. ]. >> a recap? >> we received three patients.. >> a recap? >> we received three patients.>? >> we received three patients. [ inaudible question ] >> this is san francisco general hospital, those listening carefully were probably able to assume that on their own. he is talking about the patients they have received. they can't go into great detail. they have some critical, some stable.

>> fair. the most critical, a 36-year-old male. they have brief again in an hour. we jumped in when we saw the pictures come up on live television. not knowing that it wasn't the police department. wire fairly safe in saying that the next briefing you see should be the san bruno local pd. i was just making a point about all the various jurisdictions. so you have san bruno local pd, you have county, you have chp, california highway patrol, and we've already seen arriving elements of alcohol tobacco and firearms, the aff office in san francisco. and notebly the fbi. during our discussion, you saw three individuals with kevlar vests marked fbi. this is an unusual time in the history of the fbi. they have been publicliky minutished for the first time in our history by the president of the united states. and then we go to a situation where we need them.

package bombings in austin, texas, a workplace shooter at the youtube campus in san bruno. we need them to do their job as professionals. and former police commissioner bill bratton, this is the problem when they have been in the news for something eld either. >> it is a tough time for the bureau and i feel for them. they are really in a support position. multijurisdictions likely that the lead entity would be the municipal police agency. highway patrol in california is not -- the highway patrol, they are not investigatory type of

organization. sheriff eve department would have dual responsibility. criminal investigation as well as patrol. so i would think all of those agencies would be there in the lineup and probably the chief of police. but they need to get information out even if it is bare minimum, basically just to calm things down. it th this is now almost two hours into the situation. >> and with everyone in a device now, getting what passes for information. and the upper right hand corner of the screen, sadly now showing me if we can go back to the parking lot, what you are look at is an overloaded microphone stand that is where the police briefing is going to be as everyone from every local media organization is arriving. >> if i could just jump in on this point of the fbi, when you reach out to sources at the fbi

in the throes of whatever political scandal they are dealing with, whether the president attacking them, intel committee releasing classified information over the objections of the republican trump appointee, the answer they always give you is we turn to the work. whether we feel supported or whether -- they don't really - indulge themselves. >> and here is the police chief. >> this is a fluid situation and we're doing the best we can to keep everybody up to date. so at 12:46 p.m. this afternoon, san bruno police department received numerous 911 calls regarding gunshots at the youtube campus. police arrived on scene at 12:48 and immediately began a searchs

suspect. upon arrival, they encountersfl building. we did encounter one with a gunshot wound. upon search, officers found a second with a gunshot wound that may have been self inflicted. we are working on done ficonfir that. two additional victims were locateded at an adjacent business. the extent of all of the injuries are unknown right now. they were all transported for emergency medical care, but all unknown. so we have four victims. all transported for gunshot related -- multiple law enforcement agencies have responded to assist. we are grateful for everyone's help.

this is an active investigation and numerous law enforcement personnel from numerous different local agencies are still conducting a search of the business just to make sure that it is clear. we conducted a quick immediate search of the premises when the first officers arrived. and after that search was ckoc n conclud concluded, now a slow search to cover all the bases. that is all we have for you. i cannot give you the time of the next press update, but we'll put that out as soon as we have that information. >> i'm hearing there were two shooters. >> i cannot confirm that. it is a female. [ inaudible question ] >> my understanding is that they

all have been transported and treated for injuries that are treatable. we're hoping for the best obviously. [ inaudible question ] >> my understanding is the building has been evacuated. there aren't people in the immediate area. we're trying to contact a large amount of people to try to identify and gain information from witnesses at the scene. so you can imagine is this a monumental task. [ inaudible question ] >> what weapon or weapon? >> i don't have that information. i'm sorry. [ inaudible question ] >> i haven't taken inventory. there are numerous agencies. we work well with our neighboring partners and there is a lot of them [ inaudible question ] >> i want to clarify that we did locate a victim with a self-inflicted gunshot wound. a female. but the investigation is still

ongoing. >> was it an ex-employee? >> i have no information. we have searching the building. no information for subject that there is somebody else in there. >> where are the employees now? >> yeah, a lot of employees slch evacuated as you can imagine. we have identified a group that we want to talk to and we have staging areas detectives are interviewing them. but a pretty hectic scenario, so it is a task. [ inaudible question ] >> we believe -- my understanding is that the building has been evacuated, so they are all outside. >> how many people are you talking about? >> a few hundred. [ inaudible question ] >> i have no idea.

i don't know the circumstances. i don't want to eliminate any mobility. i don't know any of that for sure. like i said, this is still active. we're still investigating this. so there is a lot of things that i simply don't know. >> shorts started at the court yard? >> i don't have that information. i will try to get you an update as soon as we can. but i think i've given you almost everything that we know. [ inaudible question ] when we know -- i don't want to give you a time because i may not have a lot for you. so when we can identify a time that is appropriate to come back, we'll dough th that immed. we'll put it out through social media. >> we understand that police have badges? do you have -- >> i don't have any information regarding that. >> a problem with security? >> we're not even at that point yet. still trying to address the situation. okay. i will get you more information in a few minutes.

[ inaudible question ] >> i don't know. they have not been identified. that is all i have and again i'll get back to you as soon as i can. >> we all heard it together there from the chief of the san bruno pd, there was actually a lot of information there. and anicolle wallace oig, is it pre-versed that i am some what cheered that is it not a hire body count, not a multicasualty event? we have the basic contours of the story that are one assailant, apparently a female dead by her own hand? >> i was scrolling through social media to see if there are any accounts which, no, it is not pre-verse. but you have to keep in mind that the people injured and killed and their loved one, all they did was going to work today and they will get a mohorrific

phone call that people that mayen the center of their lives are no longer with us. so it is wrenching. and we had the video up during the sbhir hour of tentire hour working out with nothing. every one of those people were traumatized today. so i think that none of us here is -- hathanks to you, we never shy away from the policy discussions, commissioner, but i think just keeping in mind that a lot more people than the three who were on the receiving end of that gun that were traumatized today. >> everyone will have their lives changed one way or another. >> and tear paheir parents and . >> of course. and a huge trauma in the san francisco bay area.

>> whien you need to secure an area, just to come in the studio today, we need use our employee i.d.s to swipe them, they don't also think of bringing local pd in and saying here is a hard pass, that should open all of the pass protected doors. so it has come up before. we learned of these again four shot victims. they believe the female took her own life. part of the chief's narrative

matched the witness we heard earlier, that they were off site, the two women he spoke of, from the vantage point of a carl's jr. restaurant. commissioner, what else stood up to you from a local chief? >> the idea that the earlier report from the doctor of the hospital that a male critical, the other two not critical, so at this time it appears one death and that appears to be the likely shooter. the idea of two different locations is very interesting. two women off premise and then the man on premise. as we talked about earlier, they will be moving very quickly to go to the home/residence of the now apparent deceased shooter for to determine is there anything there, hopefully not additional bodies. but try as quickly as possible to get to the motive on this so that they can at least dispel

speculation about domestic violence. what was it. >> and because a quirk of our language calls for euphemisms whenever anyone is giving a public statement, self evacuated has joined outplatement and deplaning as an expression for something to easily explaining like running like hell. but a lot of people self evacuated. and they also if their cars were not in a frozen zone, people were driving home as well they should. to nicolle's point, the exponential spread of this, think of the parents and family members, siblinsiblings, childr. think if you are just ear shot of around being fired at your workplace, how that will change your life forever before. >> horrific. and what is so -- and again i don't think anyone becomes

number on oig to thesnumb to these. i wouldn't accuse anyone of becoming numb to this horror. but i do think that we underestimate the lasting horror because we move on. this probably won't be in the news in a week. but these people, their kids will be scared new every time their kids go to work. the parents of the young employees will want to know text me when you get home safely. the trauma of being a victim of a mass shooting sntisn't endurey youtube, it is the neighboring tech companies, it is the terror of every parent whose kid comes home and says i had a fire drim toda drill. the terror that you live with that your kid is going through active shooter drills is a terror that every spouse or parent or child of an employee of youtube will live with for a very long time.

frts. >> look at this picture. wonlg fr o one police officer has detailed to this employee. and their i don't think is to ca job is as to pat them down and make sure that they are what they appear to be. some you see with a hat or something that they were able to grab. others weren't so lucky or were in a rush. part of the reason why it takes so lo being to get the all clear, heavily armed teens are in the cat cotake copies of tha complex yelling and some and i show us proof. and perhaps people quietly in closets.

so clear and hold, clear and hold. the now familiar sites of completely innocent people with their hands up because when police are first responding to these things, commissioner, you can't assume anything about anyone. >> building on the comments about the ripple effect from this, that all those people standing in the courtyard that you saw, likelihood is many of them don't have their car keys, they are back in the office. you referenced that earlier that running out with nothing. so the inconvenience apart from the fear that they experienced is now going to expand as they are not allowed back in the building. a large part of this area is now a crime scene so the police figure out where did the shooting occur. so it will being off-limits. so the fire component and i

inconvenience component. so just beginning the rim effects of the story. sgla >> and there will now be a national conversation about workplace will now be a conversation about workplace violence. and i imagine every company, their security department, their ceos, are going to stay late saying if it happened there, how can we be different. it's now happened in a workplace that's as you noted, a very modern workplace with very sophisticated security that even the local police couldn't get into. >> nicole, that's a lot of what i actually do now, my company company--how do you plan for it? how do you deal with it? it is part of contemporary life

in america today. terrorism, domestic violence, that's been very publicly with us for decades now, but workplace violence is still a relatively new phenomenon despite the number of incidents over time. >> the fear, terrorism, workplace violence, the emotionally disturb ed. these are tough times that we're living in and raising children. how do you basically try to protect them? interesting times, to say the least. >> it always looks cruel to see the aerial pictures, whether it's a school or a workplace of -- being forced to be treated in effect like suspects, the reason, of course, that gunman

in parkland was able to go get lunch, he was able to go to a store. he filed out, mingled in with the students. and exited the school and were it not for the sharp eyes of one police officer and the bravery of that police officer and several of his colleagues to approach this thoroughly dangerous man, he might have just drifted off into society. joe, perhaps you can help me to reset exactly the set of facts that is known right now. >> reporter: well the police chief gave us a little bit of information that sort of helps lay out what happened, as they responded, they initially saw one person who was wounded by a gunshot, then they found who they believe is the suspect, the woman who died from a self-inflicted gunshot wound and two more people that they found at adjacent businesses. so you have three victims plus the one who fired the shots at

this point. many people have been taken to local hospitals. the numberins we're hearing is three. there's three confirmed victims, one is a male who is in serious condition, one is a female who is in fair condition. san francisco medical center says they have four patients. these are not gunshot wounds, but were injuries that were suffered when people were trying to run from the scene or hide at the scene. google put out a statement that says we're coordinating with authorities and will provide firm information when it becomes available. not too many details. brian, i might want to add at this point, too, just today i was working on putting together for a workshop presentation for something i was speaking at next week. it's a session on mass shooting,

it's a workshop i have been speaking at for years, and this year we decided to do an entire hour devoted to mass shootings because it's been something we have had to cover time and time again. when the shooting happened in las vegas, me and my colleague, it just happened that we were just above the gunman in that hotel. i was reaching out today to someone who used to be in journalism, she's now out of the business, she was one of those concert goers down below, thankfully she was not injured, but the trauma she experienced is very hard. i was trying to get advice as a former journalist, that what we can do to pass on some of that advice. >> joe fryer, thank you for adding that, it's jermar germais nicole's point, when there's a workplace shooting, it has a way

of changing, perhaps imperceptibly to most people, a way of changing the workplace. pete? >> as we look at this, for want of a better word, tsomeone who had a victim chosen in advance. we still don't know the precise details here. but the impression we're getting from law enforcement is that this is sort of a domestic violence incident that took place in the workplace. this is the youtube headquarters, as opposed to someone who just wants to try to do as much damage and destruction and create as much mayhem as they can at a specific

target. it seems to be the former rather than the latter, based on what we have heard. so i think that's an important thing to keep in mind, and perhaps that's the reason that we have seen no fatalities that we know of other than the woman who apparently started this all. the other gunshot victims, there's one critical injury, but no fatalities that we know of now and perhaps that's the reason for that. so that's an important second point. and then in terms of the workplace, workplace shootings and how to handle active shooters is something that businesses have been training their employees on for years. the fbi has an active shooter program, the department of homeland security came up with one about eight or ten years ago that they began to give to large employers. we have had it, i suspect that you all sitting there have had it as well. we have had the active shooter

training here at our bureau here at nbc. so i know that many large companies have been doing this, unfortunately, workplace shootings have become a fact of life and how to respond to an active shooter is something that employees at many large companies are now drilled on. >> yeah, we have the very good fortune, pete, to have a security division run by a former u.s. secret service agent and under him are a number of security managers who hail from the nypd. years and years and years of experience and it's critical as the company spans the entire globe. and we keep looking at this shot of firefighters, and there's a lot of firefighters on the scene today because as first responders, they bring a lot of special skills, they're all trained in medical out there. and they are all better than average at search and rescue and all the problems that could come up. you never know if fire is going

to be used as a weapon, if gas is going to be used as a weapon. if their equipment is going to be needed to be parked as a shield, which is often the case. so they have been called out along with chiefs, battalion chiefs, obviously all of law enforcement within a 50-mile radius, we're two minutes before the hour of 6:00 p.m., we have heard joe friar, and we have heard the local police chief going through what we know. it appears, it appears that at this hour and facts change in these situations, we have one fatali fatality. and that would be the suspect. a female in this case, the police chief was speculating that it was her that, what took her down was a self-inflicted gunshot wound. we're going to have to do a lot more fact-finding to be able to confirm something like that. a number of people are asking what type of weapon was used in

this case? the police chief had no answer for us. we don't know if it was a long gun, handgun, we just do not know. we can, you know, try to make some assumptions, we can try to speculate based on what we have heard witnesses say about the report of the rounds going off, but we just don't know. again, san bruno, california, for those unfamiliar with the west coast. nicole, give me 30 seconds on san bruno, california as i'm coming up on the top of the hour. >> i think it's probably less than half a dozen miles from the heart of san francisco. it is the heart of silicon valley. used to be that people would, you know, commute to san francisco for jobs, now it's people who commute to silicon valley for incredible jobs like at youtube. >> and pay incredible amounts to live there. >> this really is sort of the

heart of the san francisco area. >> near the airport? >> the airport has a physical address right adjacent to san bruno. but it is the beating hart of silicon valley. these jobs are coveted, people are recruited from all over the world to work at a campus that cara described earlier in our coverage as airy, as highly desirable. and the fact that, and i know we say this every time, that if it could hatch theppen there, it r could happen anywhere. >> the 6:00 hour has arrived. we remain in breaking news coverage, because of the story that has compelled our attention, that is a workplace shooting at the youtube headquarters in san bruno, california, just south of san francisco. among those covering it for us, our own tom