Identified tonight as aaron alexix, a 34yearold naval reservist and naval contract torment more than a dozen others were wounded, including a washington, d. C. Police officer. The motive for the shooting is not known. Chip reed is at the Washington Navy yard for us. Chip. Reporter this street was a very different scene earlier today. It was a scene of utter chaos. Hundreds of police, federal agents, emergency medical responders were here. That i know arrived people were running for their life, including at the guy named todd who ran and saw the gunman as he was running from the building. It was maybe two or three seconds. We got a look at the guy. As we were going out the dark he turned and he started shooting. We immediately made a left to go down out of the building. The horror for him was not over at that point. He said he wept out into an alley where he thought he could seek cover. He talked briefly with another man who he did not know. He heard two gunshots. He looked up to where they came from, looked back and the man he had just met was on the ground with a bull tote the head. Many of the victims of this shooting were shot inside the building in the first floor. They were fired upon by the shooter from a third or fourth floor overlook above the atrium. The employees tell us it is easy to get weapons in there if you have the appropriate id. They simply do not check for them. You can simply drive right in. Scott, the mayor of the district of columbia, vincent gray tells us that there is still the possibility of a second shooter still out there, somebody who was caught on video tape. They may just want that person for questioning, but they havent ruled out the possibility that she a second shooter. If you can imagine in this area, people are on edge. Theyve been told to stay in their homes with the doors locked. The building, chip, that the shooting occurred in, has about 3,000 people in it on any given day, essentially a large navy office building. Whats going on there this evening. Reporter well, it looks quiet from today, scott, but we are told that there are still employees in there who are still being questioned. At least for those people it is still lock down. Chip reed, thanks very much. Three of the victims who were shot were brought to Med Star Washington Hospital Center to be treated for gunshot wounds. Nancy curtis is there. Nancy. Reporter scott, ac Police Officer has the most serious injuries. She was shot in both legs. Then there are two female naval employees here. One was grades by bullets in the head and hand. She amazingingly will not require surgery. Tore was hit in the shoulder. She is recovering nicely tonight after an operation. According to the hospitals chief medical officer. She is in very good spirits. She was ordering the doctors and nurses around. We told her that we were in charge here. Have the victims been able to communicate with nurse . All three of the victims came in talking. They came in. They were speaking from the get go. I have actually personally talked to all three of them. The navy suffered a horrific attack. We are a family. Civilians who do the critical work that has to be done suffered just a stunning and horrific blow today. Reporter the injured dc Police Officer has spent most of the day in the operating wound. He has wounds to blood vessels and bones in his legs. Tonight we are told he is expected to survive. Thank you, nancy. The fbi has put out a poster of aaron alexix, the alexis. Homeland security bob orr has been talking to his correspondent. What is the latest . Reporter he may have been a man with anger management issues. That is one theory investigators say they have to run to ground. Criminal records support that. They show he was involved in two previous minor shootings. He was arrested in seattle in 2004 for shatting out another mans tires. She was then arrested in 2010 in texas for firing a weapon into the ceiling of his texas apartment. He was not prosecuted in either case. Also, he had trouble back in the navy. He was fulltime researchist from may 20 07 to january 20 11, but when we looked at the record it shows a pattern of what we call misconduct. Turns out he received a general discharge rather than an honorable discharge. One more thing, he also may have been a bit of loaner. He was in fact active in social media and not in close touch with his own family. Alexis brotherinlaw Anthony Little spoke to us this afternoon. It is a shocking experience. Nobody expected this from what i understand when they did get in contact. It wasnt something to bay harmed about. No one saw it coming. No one knew anything. All it is is just, you know, shocking. Reporter he also told us 58 exis sister had not been in contact with her brother for years. The family is talking to agents and fbi is doing the obvious thing, tracing the three guns found near his body. Also, they are mapping the trajectory of all the shots, scott, to better understand how the assault played out. Bob orr in our washington newsroom. Thanks very much. Senior correspondent john miller is joining us. Former assistant director of the fbi. From what he is saying, doesnt sound like the authorities know much about this man. Hen you see them put out a poster like that, usually you see it go out as a wanted poster. What theyre really saying here is were looking for someone who really knows this person, because were not seeing a motive come up quickly. What do we know about him . Reporter its interesting. For a guy who has almost zero presence as bob orr said on social media, his real core skills were as an i. T specialist. That is where he did a lot of his work before being in the navy. For someone so involved with computers, he is almost invisible in the web. The first thing you can find on him is a mug shot from the time he shot out the neighbors ceiling in texas. Were likely to know a lot more by tomorrow, john. Thanks. Reporter thank you. You saw Navy Secretary and than sierra cortis report tonight w. Talked to the secretary a short time ago about the tragedy. Mr. Secretary, i understand that you have met with a number of the shooting victims, and i wonder what they had to say to you. Well, i was able to meet with one young woman who is a shooting victim at med star hospital here. First thing she asked about, which shows the closeness of her navy family, was her friends and their status anded had they made it out okay. Met with their family 6789 also met with the husband of another victim who was in surgery at the time. This was a horrific day for our navy family. We want to thank the first responders. Want to thank the police and fire and medical folks that did such a great job. Has everyone been accounted for in the shooting . We have done a mustard. Were going through the list in any muster, emergency or otherwise, takes about 24 to 36 hours to account for everybody. Were actively doing that as we speak. Have all of the families of the dead been notified of the deaths . The Casualty Assistance Team that does such notifications has informed chaplains and counselors have been notified, whether the families have been notified, i dont know. We know this has been a terrible day. So, thank you very much secretary of the navy, ray mavis, former governor of mississippi. Thank you. Thank you. This is the deadliest mass shooting in the u. S. Since 26 people were killed, including 20 first graders last december in newtown connecticut. That, of course, followed the aurora colorado movie shooting in july of last year. 12 died there. It is the deadliest shooting on a u. S. Military base since 13 were killed at fort hood in 2009. Seen year White House Correspondent bill plant has the president s reaction to this latest massacre. Bill. Reporter well, scott, the president s day began, once again w a series of updates on the tragedy. This one from his Homeland Security adviser lisa monaco as events were unfolding just a few miles away where here. It was, as he suggested in his speech, all too familiar. We are confronting yet another mass shooting, and today it happened on a military installation in our Nations Capital. Its a shooting that targeted our military and civilian personnel. These are men and women who we are going to work, doing their job protecting all of us. Despite the president s efforts after tragedy like the attack on the member of congress in arizona, a massacre at a colorado Movie Theater and the slaughter of School Children connecticut, hes been unable to get stricter federal gun laws. Obvious lurk were going to be investigating thoroughly what happened as we do so many of these shootings, sadly, that have happened. Bill plant in the white house brief room for us tonight. Bill, thank you very much. United nations inspectors today put out a report showing what they call plan to kill people on the 21st. The Obama Administration says more than 1400 civilians died. They say the nerve agent turned up in 85 of the blood samples tested. The inspectors did not assign blame, but americas u. N ambassador said only the dictatorship could have carried out such a largescale attack. After the attack, as youll recall, president obama threatened military action to punish the syrian government, but under a compromise worked out with russia to head that out, the syrians agreed to give up their chemical weapons by the middle of next year. To date, we spoke with a man with great experience in disarming countries from chemical open with upons. He is u. N arms inspector richard butler. We asked him whether the deadline is feasible. And i groom is being done that said its over. You must get it done by the international process. Would it ever be possible to know as this process goes forward that the syrians have given up everything that they have. This is serious. This is really serious as the framework from geneva sets forth. Theyll see that and theyll cooperate with that. If they dont, then there is going to be serious trouble. Now, of course, syria is still right in the middle, in the thick of the civil war. That must complicate this effort for the inspectors. Absolutely. Securing the inspectors will be paramount. Securing the sites that they visit, where these sites are and what they contain is a declaration that will be taken over by the rebels. We have not had to do this kind of thing previously in the thick of the civil war. All of this can work in your estimation as long as you have 1 sew cooperation from the syrian government. Absolutely. Richard butler thank you very much. A flood victim in colorado tells a heroing story of her escape. And, engineers begin the delicate work of riding the stranded Costa Concordia hen this expanded edition of the cbs evening news continues. Pelle a break in the weather today helmet camerases 70 rescuers in helped rescuers in colorado. Carrying flood victims to safety today. It is the largest air evacuation since hurricane katrina. This is what it looked like outside kathryn stanfords house. She took this video thursday. She already had about 3 inches of water in her house and it was rising. We knew at that point time to pack a backpack and get our cars across the bridge because we saw how high the water was in our creek. It is completely washed out. Stanfords only bet was to make a dash with her house mates to the home that belonged to her boyfriends father. They spent two days there before being spotted by an army helicopter. That moment when you step foot inside the helicopter. Yeah. What was that like . I had tears in my eyes. All i wanted to do was get to my mama. Wesley died a hero. Others have not been as luck i can. Wesley just grab each of us and look grabbed us and looked at our faces and said we have to get doubt of this car. Nathan jennings and emilie brigs were trying to make their escape. A torrent of water surrounded their car. Wesley screamed her name and dove into the water after her. He saved her. He frabbed her and got her grab her and got her out. Then the current was just too much. It was going 50 miles an hour, and they all just got swept away. But he did everything that he could. Can you believe that your ear alive and able youre alive and able to tell what happened . It just seems so unfair that four of us went up there and only two of us get to come back. Reporter the full scope of this tragedy is still being revealed as more people arrive at emergency shelters. Scott, just today, school buses brought about 300 evacuees to this bolder ymca. Manuel, thanks very much. Next month, former army captain William Swinson is going to the white house to receive at the medal of honor. Four years ago he was Training Afghan board police when they were am burbled by the taliban. Swinson went back into gunfire several times risking his life to recover the dead. Easy does it. In the most expensive salvage operation ever attempted, well take you there, next. It would charge overnight. Sourc. Every morning, youd wake up with a full tank, ready to go. If the car was invented today, it would be the 100 electric nissan leaf. With over 200 million gasfree miles driven and automatic hov lane access, the question isnt why electric . Its why gas . [ male announcer ] the 100 electric nissan leaf. Nissan. Innovation that excites. Now get a 2013 nissan leaf for 199 a month. Pelley off the coast of italy, today, crews began the off the coast of italy today, crews began the difficult task of riding the Costa Concordia, the cruise ship truck struck a reef and tipped over in january last year. 32 people were killed. This is a live picture. The engineers say they have one shot to do this right so they are working slowly and carefully. Mark phillips is there. Reporter slowly, almost inperceptibly, the line of concord yeah showed chefs rising from the rocky she was rising from the rock i can shore. Tilting the ship upright has been the most expensive operation salvage in history and was supposed to take all day. Now its going to take all night as well, at least. Salvage master Nicholas Sloan had to delay the start three hours because of overnight storms. Okay. Were going up 10 . And, with that command, machines began pulling on the chains running under and around the ship to try to pull it upright. Containers welded to the high side are designed to be filled with water. Their weight needed to help set it will ship on a huge undersiege platform thats been built. In the coming months, more containers will be attached to the other side of the ship. Theyll all be filled with air to work like water wings. Thats the plan. But time lapse images show the ship has so far moved just a fraction of the distance it has to go. This ship, big though it is, is like a 950footing with a cracked shell. The trick has been to try to roll it over without having it fall to bits. The chief italian engineer explained the problem. To bring the wreck in floating condition to be taken for demolition in one single piece, it was the target, the two main goals. Do you think youve accomplished it, or is it too soon to tell . So far so good. The accident when the correspondent cord yeah saled too close to shore and 32 people died took just a few minutes. The captain is still on trial for manslaughter, and theyre still trying to clean up the mess his rash decision left behind. Mark phillipsings cbs news, italy. Well be back in just a moment in an update on the Washington Navy yard shootings. ,,,, license and registration please. Whats this . Uhh, its my Geico Insurance id card, sir. Its digital, uh, pretty cool right . Maybe. You know why i pulled you over today . Because im a pig driving a convertible . Tail lights out. Fix it. Digital insurance id cards. Just a click away with the geico mobile app. Pelley investigators continue to search for a motive in the massacre today at the Washington Navy yard. At least 13 people are dead, including an alleged gunman. More than a dozen others were wounded. The suspect is identified as aaron alexis, a 34yearold Navy Reservist who worked for the American Computer Company h. P. As a contractor for the navy. He was arrested in connection with minor shootings in texas and Washington State but was not prosecuted in those cases. Today, the navy yard remains locked down as the Investigation Continues and flags will fly at half staff at the white house and the capitol to honor the victims. That is our special expanded edition of the cbs evening news. There will be more about the shootings tomorrow on cbs this morning. For all of us at cbs news around the world, goodnight. Captioning sponsored by cbs captioned by millions of dollars spent. N brandnew technology that t working. Good evening, im allen ideas a coastally setback in the Bay Area School distrigs plan to tackle truancy. Millions offed there dollars spent on Brand New Technology that isnt working. I am allen martin. I am elizabeth cook. Only on 5, kpix 5s mark kelly is in San Francisco where a Computer System to track School Attendance so far hasnt worked. Mark. Reporter lids, they havent been able to accurately take attendance all year so far, but tonight were told there are three very smart tech i can people working hard, and that Administration Building to get all these kinks figured out. School officials acknowledge it is mess. Its Brand New Computers cant track students attendance. No one knows if students are showing up or not. I agree it is our highest priortism we are working to resolve it. The i. T department is trying to count heads manually by having staffers scan all these paper attendance cards. It is all they can do. Without a computer in every classroom, that would cost 6 million. Teachers resort to taking attendance on these Old Fashioned paper cards. Then the cards are put into a scanner. Staff says the scanners inside many schools just arent working, not powerful enough for the new Computer System. So many of those cards are getting dumped r