New yorks top cop says cruz knows, quote, absolutely nothing about counterterrorism. And man in white. Newly released video shows the mysterious man walking next to the belgian airport bombers. Who is he . Where is he now . Im wolf blitzer and youre in the situation room. Lets get to the breaking news. Were now learning new information from the police about this afternoons shootin inside the u. S. Capitol Visitors Center. The suspect, a man whos now in the hospital. Police shot him. A woman described as a bystander has been injured by shrapnel. The gigantic u. S. Capitol complex went into lockdown. Police cars and ambulances rushed to the scene. Visitors and staff were told to shelter in place. That lockdown ended about an hour ago but plenty of questions remain. Our correspondents, analysts and guests have full coverage of the days top stories. Lets go right to capitol hill right now. Brian todd is on the scene for us. First of all, brian, tell us what the police are now saying. Reporter wolf, police are now saying this suspect is known to police from previous incidents here on capitol hill. Capitol hill police chief just briefed reporters giving details about the incident, saying this is an act we believe of a Single Person who has frequented the Capitol Grounds before. There is no reason to believe this is anything more than a criminal act. The police chief did not give the suspects name but did indicate that the suspect is known to police because he has frequented the Capitol Grounds before. Other information we just heard from the police chief, the suspect entered the Capitol Hill Visitors Center area, passed through a checkpoint. An alarm was set off. He drew a web on and a Capitol Hill Police officer then shot him. He has been injured, he was transported to the hospital and his condition is not known. Also a female bystander was wounded but no Law Enforcement personnel were wounded. But again, this just in from the Capitol Hill Police chief, Matthew Verderosa. He said this was a single act, no reason to believe this was terrorism or anything more than a criminal act. The suspect is known to police. We also, one of our local affiliates, caught up to a witness a short time ago who described the scene when the capitol was locked down. Take a listen. There was a bunch of military Police Coming up with guns and they were shoving us over to one side so they could run up. Then they took us, seemed like a very long hall that they said was three levels below in the basement. Wow. Three sublevels in the basement and basically had us stand there for, i dont know, 45 minutes. Reporter and again, new information tonight. The breaking news, the Capitol Hill Police chief Matthew Verderosa telling reporters that the suspect in this shooting was known to police. The police chief saying that he attempted to go through the metal detectors near the capitol visitors complex. When that happened, he pulled out a weapon and at that moment Capitol Hill Police officers fired on him and shot him. He was transported to the hospital, wolf. His condition is not nope at this time. A femalepais bystander, 35 to 45 years old was injured by shrapnel and her condition is not known. Did the police chief say what kind of weapon it was and whether it was loaded . Reporter we pressed him on that and he walked away very hur eed hurriedly. He may not have that information. His information at this News Conference was very preliminary. We also pressed him about a name of the suspect and he could not answer that or did not want to answer that. What he did say was that the suspect was known to them. So the only shots that were fired were by Police Officers on the scene to stop this guy from continuing, right . He actually never managed to fire a shot, is that right . Reporter from everything we know now, wolf, he did not manage to fire a shot. He went through the metal detectors, he set off an alarm. He drew a weapon and at least one Police Officer shot at him and wounded him. There is no information now that he discharged his weapon at all. Again, that could change because this is all very fluid. We dont have a name of the suspect yet. As of now, no information that he discharged that weapon, wolf. Brian, stand by. Clearly security extremely tight up on capitol hill right now because of the already serious threat of terrorism, heavily armed guards are everywhere here in washington right now. Our senior political reporter manu raju covers congress for us. Manu, youre up on the hill all the time. This is something theyre clearly worried about, someone coming with a weapon trying to go through the magnetometers trying to enter the Visitors Center. Reporter thats right. The Capitol Hill Police have been increasingly preparing for this since 1998. That was a time when two Police Officers were actually shot in the capitol complex. Since that time you have seen a significant increase in Police Presence to prevent these incidents from happening again. Post 9 11 that security was ratcheted up even further. And the capitol Visitors Center is where hundreds if not thousands of tourists enter every single day and week to come and see the Majestic Building that is the United States capitol. That entrance is right outside the Capitol Building and actually across the street from the United StatesSupreme Court. But throughout the capitol, the Law Enforcement preachpares for contingencies like this. In fact today when senator joe donnelly of indiana was meeting with mayor errick garland, the shelter in place drill went off as that was happening, actually a few hours before the shelter in place took place in the house and the senate, just shows how proactive Law Enforcement has been to protect against this type of incident. So clearly Law Enforcement is preparing for this type of thing and as we saw here, they reacted rather swiftly as soon as the shooters the suspects gun went off in the magnetometer, police appeared to fire away and thats where the suspect is right now, in the hospital under surgery according to the police chief. Nd it was pretty frightening for everyone in washington when we heard almost exactly the time of this lockdown up on capitol hill and shots were fired on capitol hill, manu, almost exactly at the same time we got word of a lockdown at the white house and reporters, everyone was told to stay in place, dont leave the west wing because apparently someone tried to jump over the fence. We have no idea if this was coordinated. But walk us through the sensitivity of whats going on here in washington right now. Reporter yeah, thats right. What were hearing from secret service is that actually it was not a fence jumper, someone was trying to enter the white house separately and thats what prompted that lockdown at the white house. But it was not related at all to whats happening what happened in the capitol. But as you said, it happened at about the exact same time so it seemed that there was something that was related here but really just shows how on edge and how much precaution is taken by Law Enforcement given the age that were living in. Also, i should note, these precautions are taken even though members of congress are actually on recess right now. Hardly anybody is in town on capitol hill other than staff members, but there are lots and lots of tourists traveling through the capitol Visitors Center as were in Cherry Blossom season and at the white house the easter egg roll was taking place today. A big day for tourists, which is the reason youre seeing such a big Police Presence. Of course the suspect, the shooting that happened in the capitol, but also this person who tried to enter the white house. It was frightening, especially im sure for all of those tens of thousands of tourists who are here in the nations capitol right now. Manu, stand by. Joining us now, the former fbi assistant director tom fuentes, art roderick, a former assistant director of the u. S. Marshals office and our chief Political Correspondent dana bash whos covered capitol hill for many years. Art, whats your take. Let me go to tom first, your take on what happened today, because it looked like the centimeter worked as it was supposed to work. Right, i think so. Someone tries to go through the magnetometers with a gun, it sets it off and the incident was over after they shot him. So we dont know what his condition is or whether this is a lone nut that frequently comes to the capitol and causes problems. Well learn that in the hours and day ahead. So far its almost a routine situation that somebody comes through there and all the mechanisms that are designed to stop someone with a gun from getting into the capitol worked. But they still have to go through all the motions. Thats why this massive lockdown. It didnt just take place in the main capitol hill building but took place in all the Office Buildings on the house side and the senate side. They want to make sure that this incident isnt a cover for something that potentially be worse. Exactly, wolf. And i actually got a couple of texts from some friends of mine that were in lockdown on the hill. And the Capitol Police had come by and let them know the situation was stabilized but to remain locked down until they give the all clear. I think the key part here is, and the chief mentioned it, that this individual is known to them. Anybody that has done Law Enforcement security, worked personal protection details, unfortunately you have individuals out there that are known to create disturbances or create these types of incidences so they are known. And that leads me to believe that probably what we have here is just a criminal act done by a psychologically unstable individual. But you dont know that until you obviously investigate that. Dana, what are you hearing from your sources . Because youre well plugged in up there. About this individual who is obviously in the hospital right now . Well, as you heard, that police chief didnt want to say much about this suspect. But apparently the reason why e suspect is known to the police is because he was involved in an incident back in october of last year. So october of 2015, where he was involved in a disturbance disruption really in the House Chamber and during that he assaulted a Police Officer. So that will certainly get you noticed by the Capitol Police and get you on a list of somebody to look out for, so that is likely why they knew who this individual was so quickly. I could say that is reporting that comes to us by way of our colleague, peter morris. The other thing i want to add to that you asked the question, wolf, about what kind of gun was it and was it loaded. The one thing that the police chief did say is that they have the gun, which probably shouldnt be surprising, but, you know, you never know in these incidents so they do have it. So we might not know the answers to those questions, but they certainly do. Dana, were just getting word according to two Law Enforcement officials the suspect is an individual named Larry Russell dawson. As you point out, he was pretty well known to Capitol Hill Police because of other incidents in the past. Is that right . Thats exactly right. We probably got that information as i was speaking. We can use the mans name. But thats exactly right. He was known to the Capitol Police. But, you know, i just want to underscore especially as somebody who, as you mentioned, for years i would walk and have walked through the doors of the capitol. Not through the Visitors Center because i have a press pass but ive watched the whole security operation change so, so much, not just since 1998 when two Police Officers were shot and killed at the capitol door, but more importantly since 2001. The panel was talking about the shelter in place concept. Obviously it was a quite different situation. But i was at the capitol on 9 11, and the reaction was everybody evacuate. Everybody get out. So you had this mass exodus of people running out of the capitol down onto the lawn, nobody knowing what was happening an everybody potentially being in more danger being outside. So the shelter in place idea to protect the people in the capitol and the people outside the capitol, that is one of the many things learned from such horrific incidents like 9 11 and there are security measuresn place that didnt even come close to existing back then when that happened. Quickly, dana, i want to point out to our viewers that the suspect now in custody is an individual named Larry Russell dawson, 66 years old from tennessee. Court documents say he was involved in an incident as you point out back in october, 2005. He disrupted the house of Representatives Chamber and that incident according to documents. He loudly stated to congress he was, quote, a prophet of god. So clearly theres an issue there with this individuals mental status, if you will. Thats right. And i seem to remember that incident, because it was one of many times being in the capitol there was a lockdown because of that happening and because, you know, when theres a disruption of that magnitude while the house is in session, and my memory is that the house was in session at the time, everybody stops and security measures go into place, so that is why he was known to Law Enforcement. But i also just want to underscore the idea that everything did work. You know, it is obviously unfortunate that a woman had to go to the hospital because of shrapnel, but the fact that the mag worked, set off by the gun and even though this individual was clearly determined to use the gun or at least draw the gun, the Police Officers were so well trained, they were ready to react in a split second and that is something that we should not forget. It is so important and should be commended over and over again in a situation like this where everybody wants and relies on buildings like the u. S. Capitol that really represent freedom to continue to be so and to feel like they could be protected when they go into them. All right, dana, stand by. Everyone stand by. Were going to stay on top of the breaking news. We have much more. Theres lots of other news coming into the situation room as well looking at live pictures up on capitol hill. Well be right back. Thank you for calling. Well be with you shortly. Yeah right. Xerox Predictive Analytics help companies provide a better and faster customer experience. Hello mr. Kent. Can i rebook your flight . Im here Customer Care can work better. With xerox. Wait im here mr. Kent . gasp shark diving xerox personalized employee portals help Companies Make benefits simple and accessible. From anywhere. Hula dancing . Cliff jumping Human Resources can work better. With xerox. Virgin islands nice so nice so nice, so nice spend a few days in st. Croix and return with a lifetime of experiences. Thats Virgin Islands nice. 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Were going to continue to monitor the breaking news, the information about this afternoons shooting up on capitol hill, but were also following important new developments in the race for the white house. Ted cruz this afternoon insisted he has no interest in to going down into the mud, he said, with donald trump. In the senators own words, who cares what trump is tweeting late at night . Sunlen serfaty is following the latest developments and is joining us now from wisconsin. Sunlen, a week from tomorrow the primary in wisconsin is shaping up as a crucial test to stop the donald trump effort, if you will. What is cruz telling voters today . Reporter well, its very interesting. Weve seen donald trump today really escalate this feud with ted cruz. Hes threatening a lawsuit over delegate counts in louisiana. This is a state that voted weeks ago really showing how bitter and how intense their fight is. The two now battling it out over every delegate. Donald trump accusing ted cruz of trying to steal delegates. Hes trying to steal things because thats the way ted works, okay. The system