The vehicle backs up slightly. The driver exits the vehicle and runs away. The suspect then drives towards center block. It is at this point that those actions were noticed by rcmp officers, that vehicle that is moving with the door opened and pursuing the suspect vehicle. So you see the green bus that goes by. One rcmp vehicle, the second vehicle, there will be a third. Youll be able to see the suspect run into the center block. Our officers are in pursuit. I can tell you as he gets to the door of the center block, thats an exchange of gunfire with the house of commons security officers. Our officers back up slightly as that shooting takes place and then pursue him inside. Another view of the ministers vehicle approaching center block. You can see Police Officers pursuing him into the door. So now ill go through a little bit more detail. Witnesses interviewed by the Ottawa Police service reported seeing the shooter at around 9 50 coming from behind the war memorial on the west side where he fires twice at reservist nathan cirillo. The shooter is positioned on an angle behind the victim where they cannot see him coming as they are facing south. The shooter fires one shot at the second guard but he missed him. Witnesses heard the suspect yelling something that we dont know what it is in english and then running towards the north. The investigation revealed that he used the beige vehicle and headed to welington. The first calls received via 911 were at around 9 52 36. He parked his vehicle in front of the elgin entrance and youll be able to see the slides as we go through the chronology. He accessed the grounds at Parliament Hill on foot and started running towards the east block where members of parliaments vehicles with parked. At 9 53 16, the suspect overtook one of these vehicles and drove towards center block. At 9 53 37, he immobilized the second vehicle and starting run towards the main doors of center block. At that point, vehicles on site chased the suspect to the entrance of certain block. The suspect entered certained block seconds before the officers chasing him were able to reach the doors. It took 1 23 seconds between the time the suspect parked the beige car and entered the center block. One inside, the suspect exchanged fire. The exact details of the exchange are still under investigation. We need to recognize the courage of all the officers involved in this fluid and dangerous situation. The suspect, of course, was pronounced dead at the scene. [ speaking Foreign Language ] there is no longer an immediate threat, however, we continue to exercise increased vigilance and are taking extra precautions to a lot of new information. Let me pass off to my colleague jake tapper. The lead starts right now. Im jake tapper. This is the lead. Moments ago, canadian Law Enforcement officials were revealing new details about yesterdays horrific attack in ottawa. Im joined now by cnn justice correspondent pamela brown whos been monitoring this for us. We saw lots of closed circuit tv of the shooter running from the war memorial to the parliament. They gave information that he had just bought a car on october 21st. Interestingly, they said they had discovered an association that the shooter had with some individuals with radical views. You have more on that. We do. Were learning that he did have connections interactions with other individuals who had islamic extremist views online that he interacted with these individuals on extremist websites and through social media. But at this point, its unclear how far his connections with these individuals went. In other words, it doesnt appear at this point in the investigation that there were any operational links between the gunman and these extremists but that they were just engaging online, including one who is a canadian man believed to be fighting overseas in syria with militants. Weve learned from sources that zehafbibeau had been in contact with this person. This is the first time were seeing Surveillance Video of it all play out. We see the massive chase ensue. We see people running and the Police Officer is right on his tail as he drives up to parliament and gets out with all these Police Officers following him into parliament. But he still somehow makes his way inside and theres a gun battle that ensues. Thats at the heart of the investigation today. How was it that he was able to get through security, get through all of these security agents and still make his way inside injuring three people in a hail of gunfire. As we know, it could have been its horrific, especially for the victim, the canadian soldier, nathan cirillo, but obviously getting so close into the Parliament Close to the actual chambers where Prime Minister harper just spoke earlier today. There was actually a bullet hole right outside that room. It could have been horrific. And the idea that there are now serious questions about whether canada needs to rethink how much security it has in places such as this. I think thats sort of the sense that youre getting in canada today. Theres sort of a sense of shock. Someone said canada lost its innocence. Weve had two serious attacks in canada just this week, two soldiers killed. And we actually learned in this press conference that he fired at another soldier and the bullet missed. But were learning that the fact that he was in communication with other extremists who are still living in canada, you can imagine that this has intelligence officials very concerned in light of that, in light of what weve seen this week. And well have more on this later in the show. Pamela brown, thank you so much. Initial interviews with bibbibes family, his mother told the associated press, im mad at our son. I dont understand and part of me wants to hate him. Cnns ana cabrera is in ottawa. We just learned that bibeau had connections to jihadists in canada. What else can you tell us . Reporter we understand those were Online Interactions with jihadists. But according to u. S. Officials, he maintained a very low profile. He did have a criminal history here in canada. Hed raised some suspicion among canadian authorities. But we also learned at that press conference that he was not one of the 90 people who were on this important list who is being actively investigated. Cnn has learned the suspect, michael zehafbibeau had connections to other radical jihadists in canada, including this man, wanted by canadian authorities for traveling overseas to fight alongside isis fighters. Zehafbibeau was an islamic convert, according to authorities. Unclear whether he had accomplices in committing the attack. When faced with attacks on the country we all love and the things we all stand for, i know we will always stand together. Reporter canada lawmakers returned to work one day after those shootings that killed a soldier and rattled a government and a nation. Sergeant at arms Kevin Michael vickers received a heros welcome as he led the daily procession into parliament. He is credited for saving lives by taking down the gunman who minutes before shot and killed Corporal Nathan cirillo while he guarded canadas war memorial. Members of parliament recount the chaos. Suddenly the door barged open, this one, and it was the Security Guard whos usually manning the door. And he runs in and he shuts the door and locks it and is starting to tell everybody to get down. But as he opens that door to come into our room, the gunshots fire. Reporter when you first heard those gunshots, what went through your mind . It took us a few seconds to realize what they were. And i think it was just panic instinct. We all went in all different directions. Very scary. Reporter and scary as it was, it could have been worse. The gunman entered through this door just behind me and came running down this hallway. He ended up all the way at the end just outside the library where he was shot by the sergeant at arms Kevin Vickers. Had he gone left or right where the two parties were caucusing at the time, the outcome could have been much different. The gunman proceeded down the hall of honor, firing shots. Were told the suspect tucked himself behind this archway. Sergeant at arms Kevin Vickers was in his office right over here. He grabbed his gun, were told he came out, crawled along the wall to be in a position to get a shot. And it is here where vickers took his shots and killed zehafbibeau. There are still bullet holes, in fact, inside that hall of honor. We saw broken windows from the bullet holes. Despite all of that, members of Parliament Told me today its pretty much back to business as usual. They are determined to move forward, not with a sense of fear but with courage and a steadfast resolve to ensure the bad guy here does not one. Ana, thank you. I want to bring in a member of canadas parliament, chrystia freel. Lots of new information at this press conference including the fact that zehafbibeau may have had dual citizenship with libya. What have you been told about him that you can share with us . I think the most important thing is all of us are being very careful not to rush to judgment. I thought that that was very useful information we got from the rcmp just now. Yesterday there was a lot of concern part of the reason we were under lockdown for so long was that there was concern there was an accomplice or shooters in ottawa. The other thing i would say the mood in ottawa today and the mood in the country is, keep calm and carry on. This is very serious for us. But were not going to led it change canada and were not going to overdramatize. Zehafbibeau was living in a homeless shelter before the attack. He bought the car he used just the day before the attack. We know that his mother worked in canadas government for the immigration and refugee board. She had reportedly not spoken with her son for five years. What can you tell us about the shooter, especially in terms of just those final hours of his life as he was plotting the attack . Look, i think the important thing here is that this was a criminal act, it was an act with tragic consequences for Corporal Nathan cirillo, who was the reservist standing at our honor guard at the war memorial. Beyond that, we really dont know yet what was going on in this criminals mind. Well probably never know. And im really waiting to find out more from the rcmp what they find out about him. We do know he was refused a passport. So he had registered as being a dangerous person. There seems to be an odd gap or disconnect in this man, zehafbibeau, and also the man who attacked canadian soldiers earlier in the week with his car. Both of them were known to government authorities to a degree, zehafbibeau applied for a visa to go to libya. He was denied. The other man earlier this week had had his passport confiscated. He said we wanted to go to syria to fight. Even though the government seemed to know something about each one of them, have concerns about them, they still ultimately launched attacks in both cases against canadian soldiers. Does this gap need to be plugged somehow . I think thats a really good question to ask. This is a week when were very grateful to very many of canadian security force, our first responders, particularly to Kevin Vickers, that heroic sergeant at arms who ultimately killed the shooter. But there are questions that were asking in parliament about why these men who had registered as being dangerous werent under closer surveillance. Chrystia freeland, thank you so much for joining us today. Our other breaking story this hour, a doctor who recently returned from west africa rushed to the hospital in new york city after experiencing fever, nausea, fatigue. He is now in isolation and, of course, he is being tested for ebola. Well have more on that when we come back. 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The 33yearold was in west africa working for the Group Doctors without borders. The group put out a statement moments ago saying the doctor, quote, engaged in regular Health Monitoring and reported this development immediately. Cnns poppy harlow is in new york on the phone on the way to bellevue. What can you tell us about this case . Reporter hes a 33yearold doctor at columbia Presbyterian Hospital here in manhattan. He was working in west africa with Doctors Without Borders. He selfreported this morning, he woke up with a fever, called theed if ed ied fdny. They took him with all the necessary precautions to Bellevue Hospital. Why bellevue . This is the new york City Hospital designated for any potential ebola cases. Back on october 8th, they ran a drill, a full emergency drill to be ready for a situation like this. We do not know which country this doctor was working in, whether it was guinea, sierra leone or liberia. We do know that his symptoms include a very high fever, nausea, pain and fatigue. But its also important to note, symptoms like that are also consistent, according to the new York City Health department, with malaria. You can have symptoms of that after returning from africa. Also with salmonella or a very severe stomach flu. So i want to emphasize, we dont know if this is ebola. They consulted with the cdc immediately. They decided to do an ebola test. Within 12 hours from now, well know if this is a positive case of ebola or not. Youre looking at pictures right now of the ebola unit at bellevue. They are prepared for any incident like this. And as you state and we cant state enough, this is just somebody who might have ebola. He could have Something Else entirely. He took the step of selfreporting. What do we know about his movements in recent days . We know he got back to the United States about ten days ago. What did he do, say, yesterday . Reporter its a good question. Thats part of why investigators, Law Enforcement officials briefed on the matter say investigators are taking this very seriously because theyre concerned he did not selfquarantine. Last night, he took an uber cab to a Bowling Alley in brooklyn. He was out in public and officials are considering quarantining his girlfriend because he spent time with her since hes been back. Again, you saw that statement from Doctors Without Borders saying he followed all the necessary precautions. Youre not mandated to selfquarantine when you return from west africa. And they think he was following all the necessary steps and immediately reported. But, jake, they are concerned, investigators are, because he was out in public as late as yesterday and we know that he started getting these symptoms either overnight or early in the morning. But the statement from the new York City Department of health says theyre taking this seriously and theyve actively tried to contact anyone that this doctor was in contact with within the last ten days that he was here. They also said the chances of an average new yorker contracting ebola are extremely slim. Thats right. This doctor has not yet tested positive for ebola. Its possible he doesnt have it. Th