>> thanks for watching. i will be back at 5:00 for a special two-hour edition. for now, let's turn it over to brooke baldwin and don lemon. good afternoon. one of the main entrances. two major stories this afternoon. the first here in ft. hood where an entire military post is grieving. trying to understand why one of their own, an army specialist attacked his own piers. >> time is running out on the hunt for flight 370. it moves and the black box battery life runs out. the prime minister said this is the most difficult search in human history. we will get to all of that in a moment.

>> not from the battlefield, but their own base. in fewer than five years, a soldier opened fire. he is specialist lopez, an iraq war vet who shot and killed three military members and wounded 16 others just about almost 24 hours ago here. among them major patrick miller. this is from his facebook priority. his mother identified him as one of the wounded and asked for prayers for her son's recovery. miller's attacker unlike what happened in 2009 will not see trial because specialist lopez, father of a 3-year-old little girl turned the gun on himself after he came across a military police officer here at ft. hood.

>> he was approaching her at about 20 feet. he put his hands up and reached under his jacket and she pulled out her weapon and she engaged and he put the weapon to his head. clearly heroic. what she d. >> let's be clear here. the focus is two-fold. on this military family as they lot of several people here, focus on the victims and to the why. the motive. investigators have not ruled out terrorism. they know lopez served nine years as a member of puerto rico's national guard. they said he was troubled. they did reveal he was depressed and anxious and having a tough time sleeping. he was given a number of prescriptions including they mentioned in the armed services for the senate side, ambien, but he had not yet been diagnosed

with ptsd. >> he was seen lie a psychiatrist. he was fully examined. this morning we had no indication on the record of that examination and that there was any sign of likely violence either to himself or suicidal ideation. >> the next question, how did he get the gun. no mental defect. he was able to legally buy this 45 semi automatic pistol from a store not far from where i'm standing here. with me now, cofounder of military reporters and editors and a reporter at the san antonio express news and you have been covering the military for 17 years and deployed nine times. you were here in november of 09 and here for the trial last year. the biggest difference because

it's easy to it's motive and this being soldier on solder. he was a disturbed person. when that occur, the first thing people talked about was his declaration before he started shooting. to have lopez doing that, nobody knows if there was an argument that took place prior to this. that's what my sourcing tells me. the army has not confirmed temperature right away, the other one does not. they are still looking into it. that's what we are led to think that this was a disturbed

individual who nobody accounted for what he did. >> the fact that he illegally carried his legally performed firearm here on post. if you live on post with the commander, you can bring a firearm on post, correct? they will not check every car. this is huge. >> it's impossible to check. it can't be done. the same problem happens with a lot of other installations. if he is registered with his command, and you can shoot it, typically soldiers don't have to do that. he won't. they rather that the army not know they have personal weapons. >> they don't trust the

government. these are members of the military. >> that's correct. >> wow. i talked to a 21-year-old soldier who was shaking practically when she was surprised shoochlty expects there to be another incident. they said here in particular was suicides were rampant. the leadership and lack of health and lack of treatment. i imagine the army would say otherwise. >> let's start with what they know. fort campbell had 22 suicides and fort hood set the record. there have been a number of posts and joined before. they sent habits of thousands of

people. nobody really know what is that does for the soldiers. >> mental. >> it's possible. >> most do just fine. they have plenty out there who do not. you can't blame the post i don't think that's the problem. >> the soldiers are labeled as crazy if they go in. it's just something you are really not supposed to do. is that fair? >> some may feel that way, but the army has come a long, long way in the last few years on that issue. i hope they have. the real issue is that once you have them in your care, how are you being treated? that's the big question.

i have seen soldiers who are doing well and have done well in their treatment programs. it's all across the board. they go back and they have soldier who is hate them and some are happy with the post. i don't know that ft. hood is the issue. >> we don't know why. >> we don't know where the post was. all of us are hoping to get answers from the people. there too many questions out there. those are the pieces of the puzzle that we want answers to. i appreciate it with the san antonio express news. thank you very much. back up to you. >> we will get back to in a moment. malaysia a flight, we are

expecting a news conference from australia that happened at any moment. we don't know what time the news conference will happen. earlier one official said they will keep looking for malaysia airlines flight 370 until hell freezes over. 28 days into the hunt and the search is running on borrowed time. they are trying to get a ping before the batteries run out of juice. they arrived a short time ago and a ship is almost there, carrying a sophisticated pinger locator. we will go live to perth, australia. what are you hearing about the big operations news conference from australia's houston? >> we don't know exactly what he is going to be telling us later today. it's early in the morning here in perth, but we are getting a sense that it is going to be something major regarding the operations of this. that same source that said this news conference is coming that,

told us the british ship, the echo equipped with sonar that listens in the water for any sounds and any pings, we know that ship is going to be doing a specific search sometime tomorrow. they are going somewhere and listening for something specific. this is a significant development. we don't know what will be happening. this is hours away and high tech tools from the navy. we will have a lot of resources and assets in place. all honing in on this newly refined search area. >> let's talk about the american side and sonar. can it get to work sooner? >> the under water drone that they are equipped with can get to work. the brb this technology even

though it's good and sophisticated, it needs a more refined search zone to lock in. even if you are covering 150 nautical miles per day, you have a search area that is 100 times larger than that. your chances are being close to a plane are slim which is why we continue this process. we have a lot of ears in the water. the sonar equipment listening for these fading pings that have days left on the battery life. >> in perth, australia. up next, realistically, how long can they continue searching at this speed? is it the most difficult search in human history? we will compare it to other unsolved aviation mysteries. ? >> also ahead here in texas, we are learning more about the 34-year-old army specialist who opened fire yesterday afternoon including how his own wife found out. plus, i had just returned from

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. the hunt for malaysia flight 370 may be on the verge of a new chapter. the man leading the search will hold a big news conference in the coming hours. we are waiting to see what time angus houston will speak on this and we learned a british navy ship will conduct a specific search for flight 370 in the

indian ocean. earlier australia's prime minister described massive challenges. >> this is probably the most difficult search ever undertaken. the most difficult search ever undertaken. even though we are constantly refining the search area, even though the search area is moving north. it is still an extraordinary remote and inaccessible spot and a time subject to very difficult sea conditions. >> exhausted relatives. some can barely hold up their heads. that wait is keeping them in agony. with me is the analyst, a science writer. let's focus on the big operations that they are talking about.

big operations. what are the possibilities that they can talk about in this news conference. what are bigs operations. >> either we found something or we didn't. we started this with such high hopes and every time there was something in the water, it was billed a a positive lead. >> the top possibilities, we didn't find something before we found something. >> like most of us, we learned pessimism. we were disappointed so many times. we started out with optimistic language. >> your new color slammed malaysia for not releasing ping data. here's what you wrote. i am saying that the evidence at mh 370 is shaky indeed and i am criticizing not the idea that

it's in the indian ocean, but the confident assertion that it must be. what are you saying? >> the only evidence we have at all about the fate of this aircraft unless the parties know something they are not leading on, all that we have are these pings. the 13 dataless pings that were sent between the satellite and the airplane. we can't assess what they mean because they are keeping them secret. >> what we have as well is a mathematical probability. >> they don't tell us how it's built and what the raw data is. >> how much confidence can we put in? >> we have been investing our confidence in the authority of this state of the malaysian prime minister. the office of the australian prime minister. we have been disappointed.

we made these claims about the malaysia prime minister asserted that the family should accept that their relatives had debt. in his language, they led them to believe the relatives were dead. >> last night, this was the last question i asked you on live coverage. >> i said to you, i read the quote from the australian prime minister, we may never find this plane. we may never get to the bottom of the search and do all we can to keep trying. that was a foreshadowing. >> it was such a change from the optimism and confidence we had seen a few days before. it seemed like it wasn't setting expectations for what we should expect to see. >> he said it was the most difficult search ever. >> in history. >> do you believe that?

amelia ehrhardt and so on. >> that was a totally different technological age, but in the modern era, nothing compares to this. >> we will see you throughout the day and evening. brooke? >> don, thank you so much. we are here live covering the tragedy at ft. hood. we will explain how the shooter's wife found out what happened when the moment she discovered after hearing about the shooting that it was her own husband. how her neighbor trying to console her. i will share an incredibly compelling interview. i spoke with a young soldier here. she has only been here for a couple of months and told me and i'm quoting, it's a black hole. this tragedy, not a matter of if, but will happen again if nothing is done to fix the system. don't miss this.

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. just about the bottom of the hour, brooke baldwin live outside the main entrance of ft. hood. as we covered the tragedy that happened not each 24 hours ago, i wanted to get a perspective as to how they are feeling off coast and on. within the last hour, i was able to get the perspective from a young woman who we are not showing her face or sharing her name, but she wanted to her story. she was practically shaking speaking to me. she said she grew up in a military family and believes in the military and wanted to join.

she wanted to provide for her family and coming here has been like hell. she talked about the suicide rate and talked to me about why she doesn't blame what the shooter did. if things don't change, this is from her perspective. it will happen again. >> she is sitting in the car with someone who is stationed here. we are not going to say who she is and what she does. what is it like on post right now? >> it's pretty chaotic state. this place they call it the great place at the end of the day. it's not the great place. people hear things that go on, but they don't understand that this place is definitely a black hole. this is a stressful place and we don't have as much intention as we should. people are saying this is

another mass kerr and they will forget about it and it's not on everybody's mind until we have people step up and say there needs thereby change here. we will not continue to have incidents like this. at the end of the day, that's a sad realization we will have to come to. >> when we were talking about, you have only been here a number of months. you don't want to be here anymore. you want to go back to basic training because it's that bad. what about ft. hood is that bad? >> it's between leadership, just the quality of life. it's people in jail have a better than a lot of these soldiers here. if you don't have a family and you are a single soldier living in the barracks, it can be miserable. we have a lot of people in behavioral health and no one understands how bad. nobody understands how hard it is to keep the sanity here being at ft. hood.

>> you are almost shaking talking to me. why? >> it's just that frustrating being here. we have our big leaders. the pentagon or whatever. our soldiers and right now it's not up to par. we will keep having situations like this. unless our government steps in and said hey, look. we need to take care of our troops and soldiers. >> take care how? >> under arrest offer them more things like people say they have ptsd and they will blame it on this. that's a serious thing. people don't give the mental challenges that people face enough credit. it can change you. i mean i have a disabled vet mom who has ptsd. she is not the same person as she was when i was younger from being deployed because she doesn't get the proper

attention. if we fix the underlying problem of people having the mental disabilities, our quality of life will be better or the fact that we have to do crazy things and we lose our sanity and we don't get paid enough. i can flip burgers and make more money. >> you say you described ft. hood as the black hole and don't blame this 34-year-old shooter for doing what he did. >> as awful as that sounds, at the end of the day, i can't be mad at him. i blame his command and the people not giving him the help he needed. i pray for all the families that were affected by the incident. people don't understand the army is doing everything right.

they are undergoing suicide and depression. he was on drugs and on ambien. they were monitoring him. what was the army not doing in your opinion? >> just because they are saying they are doing these things, doesn't mean it was true. they are differently. they were just a normal soldier sucking it up. >> how are you treated differently. >> basically you are not good enough. you are different. they can perform the duties about freaking out. maybe that soldier department do the same thing another soldier did.

>> that's something that people are overlooking and say those people are being selfish. they are reaching out. they are going to try to get out. you will end up screwing yourself because you are left with nothing. they will not have the benefits to take care of you. who is to say you make it's the harsh reality you will be stressed out and be unhappy. it sucks that you have to live every day regretting and joining something that you thought would have been good. it's not like this at every

post. i'm a military brat and i loved the places i have gone to. it doesn't make any sense how they are treated. >> just one soldier's perspective. i can't stress that enough. one young woman's perspective being on post for a number of months. a perspective we wanted to share and she had mentioned the specialist, the shooter here from yesterday's tragedy rushing for treatment. we don't finish he rushed to receive treatment or not. we know he was receiving treatment for depression and anxiety and had been on prescription meds including ambien, but it's difficult. when the soldiers are not supposed to talk to members of the media and trying to share that perspective. talking to folks with the u.s. army and they would say the army

has come a long way and providing that treatment that came back from one, two, three deployments. >> that was a powerful interview. with the viewers at home, what they must be thinking. why does she do it. she doesn't have to. i understand the pressures. i empathize with them. she doesn't have to do it. she signed up. why did she do it anyway? i asked her why she enlist and she was in college and had a scholarship and said her mother needed the money and she said that she would be receiving every bit of money she would be receiving by being at hood. she is giving to her mother and money she couldn't give in college. she took the sacrifice upon herself and she is from a military family. she believes in the military and

serving, but coming here changed her perspective. >> i look forward to more on that. we will get back to a big announcement about the operations. this as a british ship reveals it is zeroing in on the search area. this is cnn's special coverage. we'll be right back. (dad) well, we've been thinking about it and we're just not sure.

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. >> welcome back to the search for flight 370. it is described as the most difficult in human history. cnn learned that the man leading the search will have a big news conference in the coming hours. we are waiting to hear what time australia's angus houston is going to speak and we learned a british navy ship will conduct a search for flight 370 in the indian ocean. australia's ambassador for the u.s. will keep going until hell freezes over. the aviation correspondent joins me now. you and i have been covering this and logged so many hours here. what do you think they could be announcing? >> if the australians are calling it a big operational announcement, i would assume it's nuts and bolts. i have been in the sense of who is looking where and what they are going to do and shift at the zone. we found nothing in the zone as was determined. it's going to be something if

you look at the way, they only shifted the zone to the east and back to the west again. >> the north earlier. they shifted it. >> within the zone at the moment, they shifted slightly one way or the other. it's only because they have searched the other area and found nothing. i am going to guess they are refining it. recognizing the pingers are going to stop working in the next day to a week. you noticed something that i did too. there is a marked difference. the tone is changing. don't you think? >> in the news conferences, because they got to your handle in that first week or days or so. it was almost -- always chaotic. the plane was not where it was supposed to be. >> right. >> you look where you think it's going to be which is up in the south china sea and you get the report, but it turned in the opposite direction.

you have the world clamoring for information and you are literally making it up as you go along. you get the only bits of the evidence or proof down at the bottom here. you sure that we are searching in the right area? >> no. not at all. >> why? >> because -- okay. let me get the pen out. the science upon which this is based comes from the hand shake pings. >> you have no confidence in that? >> i have every confidence in their ability to do the best job they can within the confines of science and what they can do. what if they are inaccurate by a bit? they were inaccurate here. what if they proved to be inaccurate again. the difference between me and others, i want to jump up and down and criticize them because i am recognizing the nature of the task that they are involved in. >> stick around.

hold that thought. we'll be right back. thank you very much. coming up, the search of flight 370 being called the most difficult search ever. we will show you what crews are up against and where as they try to find the plane. stay with us. our coverage continues.

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square miles. it's brilliant research that will take you about 3,000 years from top to tail to square away. good, but not great. the search area shifted to 900 miles off the coast. getting them out there and there transit times and more time and the ocean shield is wonderful. the odds are stacked against us. >> not only does it move slow low, but the proximity doesn't hear it no matter where it is. it has to be within a few nautical miles within it. >> one nat cal mile. they have a wonderful pay off here and the radar is automatic. it tracks objects.

that is great if you are looking for ships or land masses. it's suboptimal if you are looking for aircraft debro. >> is that where a submarine comes in? you have the pinger draped below it and how does the submarine work? >> this is a hunter submarine and they have missiles. they have about 35 knots, quicker than the ocean shield. this is specific to the capability. this is the passive and active sonar. this submarine is used to track others. that's what it is designed for. the sonar systems are sensitive. >> it gives you more range because it's faster and better to find things because it's with the technology. >> exactly. we are using the passive or listening bit. it is listening for the pings. we are down to the last few days and we know from experts, the ba

theory could last up to 40 days, but we are nudging on that final days. >> it could be 20 days depending on how they are stored. >> we are swg are your questions. tweet me using #370 qs. >> live in ft. hood, we are hearing when and where this 34-year-old army specialist, the shooter performed this gun. he used this to launch an attack yesterday afternoon. special cnn coverage continues after this. tthe will..., mobilizing to take on the world? you don't know "aarp." aarp and its foundation are taking on hunger with 29 million meals donated. drive to end hunger teams with local agencies to reach the hungriest among us. if you don't think feed the hungry when you think aarp, then you don't know "aarp."

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. >> welcome back to cnn's special coverage. live in texas outside one of the main gates on to ft. hood post, an investigation clearly under way as i speak. the big question at this moment, who is this u.s. army specialist, the soldier who is 34 years of age and father accused of committing such a horrendous act. he served in iraq and deployed for four months. he never actually saw combat and did serve two deployments and the first as he was a member of the puerto rican national guard. he served for a year and he has been described as normal by neighbors. he lived off of coast with his wife and daughter about three

years young. they just moved there this past february. >> as far as i knew, he was a nice guy. he always smile and waved. that's about it. typical average family. they were always coming and going. they smiled whenever they see someone. that was it. >> my colleague miguel marquez joins me here off coast. i wanted to begin with what we are learning as far as what neighbor neighbors are saying. they seemed totally normal. >> the most incredible part is this guy didn't so any signs of what was to come. even the hours before he came here. neighbors saying they waved to him and saw him before the deadly rampage. he went to the leasing office at 12:30. he came here and did what they said he did. he paid his lease and added his wife's name to the lease.

incredible. they said this just seemed like a normal guy. >> let's take a listen. >> what did he seem like? >> fine, happy. he didn't seem like the type that would do what he did. >> this is the shock that people have. they are completely incapable of figuring out this sort of thing. everything about his military record from what we can tell, dating back 12, 13 years. all the same. even though all of these issues with the claim of ptsd and concerns about his mental health were below the surface and didn't raise the alarms. >> he was getting treatment for anxiety, depression, but was in the process of being diagnosed and had yet to be diagnosed. i want to ask you about the gun. you went with the crew to guns galore where he legally

performed this .45. >> he legally and properly performed this gun on march 1st of this year, around the same time he was seeking assistant for what he said was ptsd. had not been diagnosed. he performed the gun and it's not clear why he performed the gun at that time. that is the gun you brought on to base. the other thing that is especially, saying that if he performed the gun and brought it on base, it was not registered on base. that is illegal by military standards. >> he did that bringing it on unlawfully. you are supposed to register and you know as we are learning. i want to bring in law enforcement analysts. mike, i know that you have what this sheet, this piece of paper explains. you want to buy a gun. what exactly military or not, what i that are looking for as far as medical history.

>> whether a hand gun or a rifle. they have to fill out the atf. they ask you a number of questions on this form that you fill out. have you ever been adjudicated and defective that has a determination by a court or other lawful authority that you are in danger to yourself or others or incompetent to manage your own affairs or have you ever been committed to a mental institution. then it said see instructions for question 11. it's more detailed, asking you questions about have you ever been insane and have you ever been guilty by reason of insanity. most likely people are going to go ahead and check no. the fact that he had not been declared a danger to himself or others, even though he was being treated for anxiety or depression, even being treated for ptsd he may not be deemed by

a court or any board that he was mentally incompetent. he could still after that legally buy a weapon. >> okay. mike brooks, thank you so much. miguel marquez, guns galore. who else bought guns there. >> nadal hasan who was arrested in a sting operation before he tried to replicate what was done. injuring 32 and it's a gun store here in killeen. it's not a bilge surprise he went there. it has been in the center of so many different shootings. >> thank you so much. don, we will send it back to you. >> promising a big announcement about the operations. this as a british ship reveals they are zeroing in on a specific search area. stay there. this is cnn's special coverage. so ally bank has a raise your rate cd that won't trap me in a rate. that's correct. cause i'm really nervous about getting trapped.

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. >> happening now, a special event at the white house. the president and first lady hosting members of the olympic and paralympic teams. the white house said it's a chance for the president and mrs. obama to thank the olympians for the hard work representing the united states. let's listen in. >> i have never seen it more clearly than in the story i met with someone in the white house four years ago under far different circumstances. dan nasan was sitting with leaders of the military and i got to see dan and we were remarking because we were in the same room we had dinner in together. just a few months earlier, dan had been in afghanistan. he was leading a platoon of navy s.e.a.l.s when he stepped on an ied. dan lot of legs in the

explosion, but never lot of the fighting spirit. i will always remember dan because just four months after that explosion, he finished a half mare none a wheelchair. four months after the explosion. on the one-year anniversary of his injury, he ran a mile on his prostheti prosthetics. he stayed on active duty, earning medals in swimming and running events at the warrior games and completing the new york marathon. today 4 1/2 years after his injury, dan is proud to wear another one of our nation's uniforms and that is of team usa. [ applause ] >> there is dan. dan is in the back. >> there is dan.

i also got to meet dan's sister who stayed by his side every empty of his recovery. she was an important part of that recovery and she is a terrific woman and nurse herself. i am glad to hear she is doing well. in sochi, dan inspired us all again by competing in the 15 k biathalon and the 1 kilometer sitting cross-country sprint. dan has come a long way in the four years that we met and i know his story and the stories of all our olympians and paralympics are nowhere near finished. so keep it up. this is only the beginning. many of you were here four years ago and you told us you would be back and you are back. i know you are already getting ready for that next four years, but in the meantime, we look forward to all that you are going to do in this country and around the world to keep

inspiring, particularly young people to just live a little more like you all live and show that spirit of persistence. thank you all for everything you do. i can't wait to hear about everything that you will do in the years to come. with that, i am going to turn it over to this guy next to me. he happens to be my husband, but more importantly is the president of the united states. barack obama. >> let's first of all be clear. it is more important that i'm michelle's husband than being president of the united states. i don't want anybody to be confused. many of you young people out there are not married yet. i wanted you to know -- i'm giving you tips on how to

prioritize. obviously as michelle mentioned, my thoughts right now in many ways are with the families at ft. hood. these are folks who make such extraordinary sacrifices for us every day for our freedom. during the course of a decade of war many have been on multiple tours of duty. to see unspeakable senseless violence happen in a place where they are supposed to feel safe, home base. it's tragic. this is the second time that the ft. hood community has been affected. we join that entire community in honoring those who lot of their lives. every one was an american patriot. we stand with the families and loved ones as they grieve. we are thinking about those who are wounded. we are there to support them.

and as we learn more about what happened and why, we will make sure we are doing everything in our power to keep troops safe and strong and not just on the battlefield, but when they come home. they have done their duty and they are an inspiration. they made us proud. they put on the uniform and take care of us. we have to make sure when we come home, they take care of them. that's spirit of unity is what brings us here. we couldn't be prouder of team usa. i hope all of you made yourself at home. we double checked to make sure all of the bathroom looks were working in case johnny quinn tried to bust down these antique doors. we didn't want that to happen. i want to recognize the members of congress here with us as well as scott blackman and larry from

the usoc. >> the president and mrs. obama hosting the olympic and paralympic teams as a way to honor and recognize the hard work they did. the president mentioned ft. hood and recognized the people there. those who lot of their lives and the families dealing with that today. >> right. thank you so much. good afternoon, everyone. just spring boarding off the president's remarks at the white house, pausing to really share thoughts and prayers with people here in this military family, groving today at ft. hood. you are watching special coverage and checking over my shoulder, they are getting set up for another news conference. the commander at ft. hood will give the news conference on the second mass shooting this coast has seen in fewer than five years. from sources, we now know the name and face of wednesday's

afternoon shooting. that of 34-year-old e van lopez. the big question is why. what motivated this iraq war veteran to according to the sources open fire, killing three people and wound some 16 others and then turning the gun on himself. killing himself. emergency major who served nine years and for this man joining the army, he said lopez was the best soldiers we had in our infantry, but recently lopez seemed troubled. he was receiving treatment for anxiety and depression and believing according to him and reports that he suffered a traumatic brain injury. we learned from the armed services senate hearing that that was not the case. this is according to the secretary of the army.

sources said it appears that there was some purpose to the locations where the shootings happened here. two different buildings on post here at ft. hood. and cnn learned from officials briefed on the investigation that lopez, the father of a 3-year-old girl performed this gun, this 45 semi automatic pistol on march 1st. they say it doesn't appear it was with the specific intend of using it in the shooting as they witnessed on post. he has his wife who is cooperating with investigators and questioning her. she told investigators she had no idea what brought about his sudden actions yesterday. neighbors say they were shocked. this wife was shock and they were shocked to hear. it was this man who was involved in the shooting. >> we had no clue. no one had. until two hours had passed and we all heard over the news.

they repeated the name. everybody broke down in tears. from what i can see, it seems like it was disbelief and a lot of hurt at the same time. >> investigators are trying to determine the motive. this tight knit community has to come to grips with another mass shooting. 34 years of age, what more do you know about him? they expect to hear a lot more of press conference behind you. lopez did serve in the national guard and joined the active duty u.s. army just before coming to ft. hood. he served at ft. bliss. we know that.

the question on the table is his state of mental and behavioral health. the army said he was being treated for anxiety, depression, psychiatric treatment for a number of issues, also sleep issues. he had a number of prescription drug medications including ambien. all of this is going to be looked at. one of the key questions is whether his mental health provider at the army potentially missed something. were there signs? was there any indication that this might be such a troubled human being. in military law and rules and regulations, if there is an indication someone undergoing treatment might be a harm to themselves or to others, that needs to be reported to a commander. no indication that this was reported. the question is going center around was there any reason to believe he was a threat? was there any reason to believe he was a threat when he personed

that weapon? these are all the questions we have no answers to yet, brooke. >> let me follow-up with this. we were both listening to the general testifying this morning to an army major who corroborated and said it was cutos to ft. hood for acting as quickly as they did. what changed on post and the protocol. they handle this so well yesterday. the washington navy yard here in washington, d.c. the major installations, there is much improved training, coordination, practicing and sadly practicing from mass attacks. the feeling is that the part that worked yesterday is once

the situation erupted, they were able to get personnel on the scene quickly and able to deal with it and tell people to keep everyone as safe as they could until they could resolve this entire situation. the thing about military bases, we have seen so many of these incidents, you will never have perfect security. ft. hood, you see it at the gate. tens of thousands of people coming in and out all day. it is not practical to search all of the cars. there is actually no way of knowing if someone is bent on criminal intent. what they might be bringing in even though they have the permit sticker in the window that allows them to go through the gate. >> exactly right. many wondering why not serpent every car and see if anyone is arm and has a mark on the mental history evaluation forms. everything i have gained here, that seems impossible. barbara star at the pentagon, thank you so much. i want to let you continue to our crew, i am spotting the

mayor of killeen, texas. in a matter of minutes, we will talk to the mayor who had a busy past 24 hours. he can help understand the community and this little city behind me here at ft. hood and how this impacted people here again. fewer than five years later. >> so many questions. so many questions. thank you very much. so many questions with the hunt for malaysia flight 370. we may be on the verge of a new chapter. the man leading the search will hold a big operations conference. this zeros in on the big, big developments, next. i don't just make things for a living i take pride in them. so when my moderate to severe chronic plaque psoriasis was also on display, i'd had it. i finally had a serious talk with my dermatologist. this time, he prescribed humira-adalimumab. humira helps to clear the surface of my skin by actually working inside my body. in clinical trials, most adults

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america's number one provider of online credit reports and scores. don't take chances. go to experian.com. . cnn learned that the man leading the search will hold a big news conference in a few hours. what i'm angus houston will speak. they will conduct sonar transmissions from the flight data recorder. they said the hunt for the flight is the most difficult in human history. >> this is probably the most difficult search ever undertaken. the most difficult search. even though they are constantly

refining and moving north, it is still an extraordinarily remote and inaccessible spot. a timed subject to difficult sea conditions. >> here's what else we know as well. the search crews are in the newly defined area. they will get more high tech help. ocean shield expected to arrive soon. it is basically a giant under water microphone used to help find the plane's data and voice recorders known as black boxes. the batteries on the pingers expected to run out within days. we want to focus on the british navy ship set to make a specific ocean search for flight 370 somewhere in the southern indian ocean. joining me now to discuss this is director of research who has been helping us through this. appreciate you joining us. first question to you. we know the british ship

previously searched for sonic transmissions from the flight data recorder. what else could it be looking for if not the all important pinger sound. >> that are is what they are looking for. i'm encouraged to hear them saying this is possible low the most difficult search ever undertaken. we shouldn't deminnish the challenges of trying to find this pinger box or wreckage that might be there from flight 370. it's interesting and if they have made a break. >> authorities have said that false alert could be triggered by whales or noises. how are they caused by whales? >> whales emit noises in a number of different frequency ranges. if they happen to overlap, it's possible to get a false positive. the ocean is an amazing place, more so now than ever. noise pollution is a great concern for ocean conservationists.

there a number that could confound the efforts to listen for the pinger. >> why more so now than ever. >> seismic surveys and the navies do a number of sonar activities that are disturbing to the marine life. the ocean noise is another type of collision and the debro that hampered the search. >> we are learning so much about the ocean from this particular story. we know that the ocean shield carrying a u.s. pinger locator will be inside the box and that means the search area. what kind of ocean conditions do searchers need in the coming hours to position this for the best success possible? >> you need the surface conditions and this might be more robust and they are certainly much more robust than the submercible vehicles that

require flat conditions to deploy. it's likely that this is able to be deployed on the rougher conditions and you need it to cooperate eighths bit to deploy assets of the sort. >> we appreciate you and coming up, they could hold the key to figuring out what happened to the missing plane. you heard a lot about the black boxes. we got a behind-the-scenes look at what happened when the flight data recorder is sent to a lap. what information it holds and how it is processed. brooke? >> also ahead. on the other side of the break, the mior of killeen just walked out of a briefing with general millie here at ft. hood and a number of leaders. we are waiting for the news conference happening in about 40 minutes. we will get a heads up as far as what we should be hearing and talk about how the families are affected and really the strength that they are able to tap into

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. >> welcome back. you are watching special coverage here on cnn of the tragedy that unfolded about 24 hours ago on post here at ft. hood in texas. we know a little bit about the shooter. 34 career old e van lopez, a father, a husband, four dead including the shooter and 16 or so injured. s we learned and as investigators are clearly working today 24 hours out, we are learning more about the

community and the investigations. let me bring in the mayor of killeen. nice to meet you. thank you for coming by. i can't imagine the last 24 hours you and this community have endured. >> it was quite a shock and we have all been stunned by the developments and we were full of hope and as the casualties became apparent, we were overcome by grief. we reach out to the soldiers. there is 41,000 soldiers stationed at ft. hood. those are active soldiers that they did ploy in combat and great people and they are well-led. when something like this happens, several hundred of them have been killed out of ft. hood. we not only mourned the three victims who died with the hundreds who have given their lives and families. >> we are waiting. i can see people getting set up from the news conference.

>> the general briefed us for over an hour and they know that and they kind of ask us to let him be the spokesman on the facts. he did allow us to share the things that he had just come back in. the people that that person is in surgery. he said the in critical are improving and they have not upgraded the condition, but we are pleased to hear it. >> excellent. this is emotional for you. >> well, it's emotional for all of us. these are members of the community and whenever things happen, it hurts us all. >> what about this community? i know that the soldiers are not

supposed to be talking to the members of the media and it's tough to get a perfect picture as to how they are feeling and reacting. we talked to a young soldier and they never deployed. it's a tough place. she told it to me straight. you tell a different story about a group of people and families who lived together and eat together. prayed and mourn together. >> that's correct. that's the community we are. if we are going to any new community as any young soldiers did. they don't get to know the community and go up against things. if you stay in the barracks, you will have a different view of what the community is like. if are those who live this our community and work in our community, i think they will tell you it's a community that really respects and really appreciates so much the sacrifices the soldiers make for

us. >> let me ask you this as we are trying to understand you and why this man took these lives and the fact that he had this gun that he legally bought and came on post which he should not have done with the gun, it wasn't register and began shooting. clearly that seems to me that there gaps. there holes here and the security. it's impossible to check everyone's cars. this is a massive place. >> tens of thousands of cars going through the gate. roughly 100,000 people who work here. >> what do do you and how do you stop this? >> how do you stop it in all of america? how do we stop it in our country. it goes back to people who had values and whether or not they respect authority. what we do to regulate guns, what we can do. not everybody is a good person

anymore. that's a shame. when you see video of people just walking down the street and sucker punching somebody so they could knock them out, what kind of a person would do that? we see so many examples of that. >> it's a national conversation that we have had sadly before. i covered too many of these shooting incidents and a conversation we have to keep having not just when it comes to guns and mental health this this country. mayor, thank you. really appreciate it. so don, you and i have both covered tragic stories like this and the conversations continue to percolate over mental health and what can be done. it seems coming on post at ft. hood, it's impossible to check everyone. >> it is and we keep talking and talking. we need a resolution and solution. we will get back to you in a moment. it is the boat that could be the key to finding the black boxes as the ocean shield set to arrive a couple of hours from

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. this is cnn's special coverage. the plan leading the search will hold a big operations news conference. we don't know when he is going to announce that. we are talking about angus houston. the word is we are waiting and watching and eager for any clue that he may reveal what happened to the 239 people on board the missing plane. day 28 of this hunt and the search is running on borrowed time. crews are trying to get a ping from the plane's black box before the batteries run out of

juice. we will learn that the ship will conduct a search as the hms echo. they are hunting for sonar transmissions before the data recorder. they may hold the key to the mystery. what information do they hold and how is this data recovered? zane asher is here and you have a look at how these things look. >> that's right. i spent the day with an engineer in buffalo, new york who walked me through he they convert the information from the black box from binary code, ones and 0s to information that can be read and understood to work out what may have helped to a flight like this one. >> they are protected and shock mounted. >> this is what investigators will see when the block boxes for the flight are found and data from the memory downloaded for analysis. >> we pulled the data up to see

the data in a format. >> that are i contain hundreds of data points or parameters about the flight's movement, pilot maneuvers, speed and altitude all displayed with a series of graphs. >> every flight data recorder records in binary digits. ones and zeros. in order to understand that, we need to convert it to engineers units. feet for altitude, air speed is recorded at knots. >> it's through graphs like these before we know if someone deliberately nose dived the aircraft or error or problem. >> they will be able to determine which engineer was turned off first. they know if it was fuel starvation versus if it was intentional. >> this represents the altitude f. they dropped to a lower altitude, here is where we see a

change. if someone on board altered the flight path, we will see this line start to dip or rise, depending on the direction. >> i think one of the important things that people will be looking at is who was in control of the aircraft? when we look at the data, you can see if they were coming from the auto pilot or the left or right seat. the pilot or the copilot. >> they can also use latitude or longitude to pinpoint where the plane was located at any point during flights. although the memory chips on the flight data recorders are rarely damaged, airlines still need to perform maintenance and preflight testing to assure they are up to par. the biggest challenge is to locate them before they die. >> they're could be already dead. to find that pinger in those trenches or to find it after the pinger is stopped in the trenches will be extremely

difficult. >> they were mentioning if the pingers are dead, the search is exponentially difficult. you are no longer relying on the signals, but you need the visual signals. when you do find the wreckage, because the ocean is so vast and constantly moving, that doesn't tell you that you are close to finding the black box. >> the black boxes can always be damaged. i hope not. joining me now is jeff wise. a lot of talk about the aviation industry about the failure to modernize. these boxes are outdated, are they? >> they have been updated throughout the decades since they were more than 50 years ago. they recorded a couple of parameters and now up to thousands depending on the model in the black box. i think the criticism has been more about why can't we stream this? >> the records all this stuff, but if you can't get to it, what use is it? how is it useful? >> they could be damaged in a particularly bad crash and you

can't recover it there either. this really has come to light in a couple of cases. air france 447 where these mysteries persisted a lot longer if we had been able to have that kind of microlevel. >> you said streaming. is this where we are going? >> it's possible. the big question is how much money do people want to spend versus the benefit? this acts so rare and it's a one in a million event. you have to ask yourself, we don't know what happened to this plane. they were able to find it anyway. it didn't matter in the big picture. once we figure out what happened, we can make a rational decision as to whether we need it or not. that's where the technology is going. >> when you said in a million, we are sitting here and we want that. >> we want zero, not in a million. >> the questions for the passenger families.

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today. liberty mutual insurance -- responsibility. what's your policy? . >> welcome back. i'm brooke baldwin. you are watching special cnn coverage off post here in ft. hood, texas. even without the tragedy, the subject of suicide is not too far away. let me give you numbers. 22 suicides in the year 2010 is the most ever on record here at ft. hood. ten suicides the next year in 2011 and flash forward to 2012 and back up to 19 suicides. it is worth noting as part of

this conversation, the base was pretty empty back in 2011 where many of the soldiers were deployed to either iraq or afghanistan. here we are again. talking about the mental well being of our men and women in uniform. not just them currently serving, but veterans as well. 22 of whom die of suicide each and every day. to give us a much more personal perspective of the mental struggles and challenges may go through, jason hang retired from the u.s. marines and our chief medical correspondent, doctor sanjay gupta. captain, thank you so much for joining me and thank you so much for your service. 50 of all, my first question is i understand that you suffer from ptsd and if i may ask you, can you give me a little bit of your back story and how that came to be. >> yes, ma'am. i served in iraq and afghanistan.

ditwo towers in iraq and one in afghanistan. i was hurt the first time when i went and again the second time. when i came back from afghanistan on my third tour, basically just shut down completely. isolated myself. hyper vigilance, depression, anxiety. you name it. the va basically just threw as many medications as they could as possible. i was on 32 different med kagszs at one time. i drank heavily. i basically stuck myself in the basement and isolated myself from my friends and my family and didn't go out because i was so frightened from everything to go out. i knew at that point that it was ptsd combined with traumatic brain injury and i cooperate get help. i didn't know there was help. besides what the va offered.

i had pretty much given up hope at that point. >> so what changed? that's the big question. did someone come to you and see these tell tale signs and say jason, you need to go in or did you recognize that within yourself? >> i did not recognize it within myself. my wife came to me and she stuck behind me since the first deployment and looking back, i knew that there were the signs of ptsd after that first deployment. she stuck my me and came to me after the violent outbursts and the drinking and drug abuse. she said i'm going to leave and take the kids. this is a dangerous environment. you have one more chance. through a wonderful nonprofit organization called canines for warriors, they provided me with a service dog who is hitting

behind me who i take everywhere with me. it saved my life. if i didn't have axle, people would tell you i would have died of an overdose or wrecked my car or ultimately committed suicide. i would have been a statistic. >> thank goodness for axle and the organization and for your wife for helping you get help and stay with me because sanjay, i want to bring you in the conversation. when you hear his story, does that ring familiar to you? >> too familiar. when you think about iraq and afghanistan and how many times people are coming back with post traumatic stress, a disease of the brain. he talks about traumatic brain injury in addition ptsd. these are both diseases in a way. 300,000 troops have returned

with some form of post traumatic stress. it is too familiar down to the difficulty getting diagnosis and the feeling. he was on 32 medications at some point. that is somebody basically shoving a lot of medications as opposed to trying to figure out what is happening and the correct course of action. finally to the fact that it was his wife that was really able to sound the alarm in getting help at all. >> absolutely. >> i want to bring it back. please react to that. >> absolutely. that was the case that it took so long for them to even diagnose the fact that it was ptsd and it was a traumatic brain injury and that there was an alternate form like canines for warriors and just a service dog that could take me off of that medication. 32 medications, i was walking around in a daze for almost a year.

i department even know what was up and down. it was extremely unfortunate for my family and almost destroyed my family. >> i'm sure your family is grateful it department do that. thank you for your service and speak up. canines for warriors. just one of a number of groups who are upon helping folks like you. thank you. >> up next, more coverage of the missing plane as we wait for what's being called a big news conference. malaysian officials held a briefing to answer questions of families of passengers aboard flight 370. a live report from kuala lumpur after this quick break.

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. welcome back, everyone, to our special coverage. i'm don lemon. the families of flight 370 passengers have been holding malaysian officials feet to the fire. they demand for more communication about the investigation. our senior white house correspondent is joe johns. a government briefing with families just wrapped up in kuala lumpur. tell us about it. >> reporter: don, that was a government briefing with malaysian officials and malaysian family members, people who were on the plane. cnn actually talked to a man who was in that meeting. he is the cousin of a honeymooning groom who got on the plane. he said the authorities couldn't even tell them whether the plane had crashed. expressed a lot of frustration and questioned whether the whole three hours was just a waste of time, don. >> you know, joe, chinese family members also got their own briefing yesterday. did that one go any better?

>> reporter: frankly, i think i can say no to that, don. the chinese families posed a number of questions to the authorities when they met with them. these were highly technical questions and when they didn't get the answers that they wnted, they went public with a very harsh statement and the statement said, in part, we've been fooled again and accuse the malaysian officials of trickery. >> joe johns in ckuala lumpur, thank you very much. cnn has learned that a big operations news conference will be held, this as a british ship zeros in on the search area. this is special cnn live coverage. i'm looking forward to...return for some, every dollar is earned with sweat, sacrifice, courage. which is why usaa is honored to help our members

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we are gearing up for the final four this saturday. the games air on our sister's network cbs. uconn is taking on florida. uconn beat them back in december. the second game, eighth seeded kentucky faces wisconsin, a second seed. the winner of each game plays monday night in the national championship. we're back in 90 seconds.

i want to talk more about the "ocean shield." it's set to arrive as soon as equipment technology from the u.s. navy aimed at finding black boxes. a search is being coordinated in perth, australia. >> reporter: right now cnn is learning about three pieces of new information. there is a british ship in the search zone right now. it hass sonar equipment. we were told on friday this ship with that equipment is going to be conducting a specific search. that means it's not random. it's going somewhere to look for something specific. what that is, we don't know right now. we also know there is going to be what is described as a big operations news conference

coming from angus houston, that happening sometime on friday. cnn has also learned that "ocean shield," the australian ship equipped with high-tech tools from the u.s. navy will be arriving into the search zone overnight. presumably it will be in place ready to detect the two high-tech tools that can scan the ocean floor. we're going to have a lot of technology arriving at the search area on friday. not only "ocean shield" and "echo," but all of these tools in place to help solve the disappearance. so far, we've been following this case for weeks, promising leads have been turned out to be nothing. there are definitely new developments happening right now, developments that we will be continuing to monitor. will ripley, cnn, perth.

>> will, thank you very much. an operations news conference. don't know what they mean by that, what they will announce but we'll carry it for you here on cnn. tune in tonight from 10:00 until 1:00 a.m., i'll have a special live coverage for you. bill tapper is in with "the lead". any commander now, you will see a press conference here live. in the national lead, he was a husband, father, soldier. on wednesday he became a murderer of his comrades. and with another rampage on the largest military post still fresh in our memory, how could this possibly happen there again? and in the world lead, the search for flight 370 caused the most difficult in human history. tochnology will finally arrive