Connection to yesterdays massacre. Todays killer was dressed the same all in black and wearing a bulletproof vest. That gunman also still on the loose. Hundreds of Police Reservists are being deployed to paris for a burst of violence that has been unsettling as it is tragic. In the meantime bells chime and a nation pauses to mourn. [ bells chiming ] from the Notre Dame Cathedral to mosques around paris, one of the busiest cities in the world came to a halt for a minute of silence earlier today. It was an extraordinary moment as parisians and many people around france pause to remember the horror of what happened here just yesterday. Were covering this developing story with resources only cnn can offer, our reporters, guests and analysts are in place around the world to cover all the angles of what is still a very fastmoving story. As you know the manhunt still under way. The two gunmen still the two suspected gunmen still being hunted down by police. I want to go to Atika Shubert who has been following much of the Police Activity lets begin with that manhunt. Cnns Atika Shubert just left the gas station where the suspects were allegedly spotted. Where are you headed right now is quha is the latest youve heard . Reporter we have seen helicopters circling the area and a number of Police Convoys with their sirens flashing heading off past the gas station and theres been a number of tactical looks like Police Tactical units also on the move. Now, there are reports that the two suspects have been located in this area but we have not confirmed that with police. We dont know specifically where, but what we can see is helicopters in the air and police heavy police units definitely traveling in this area past the gas station. So thats what we have at the moment and we do know this is of course, an ongoing manhunt so we can expect from police at some point to give us some more details about what exactly is the latest they have on these two suspects whether they have in fact located. Atika, can you explain what happened at the gas station . This occurred as i understand it overnight, there was an actual robbery there. Reporter yes, what we understand is that at 10 30 this morning, so a few hours ago the two suspects came in a car, they were armed, and the gas attendant said he was threatened they stole gas and food and left in the direction towards paris. French police have not independently confirmed those details yet. I was at the gas station, it was swarming with police. Number of plain clothed officers were inside the shop there gathered around the Cash Register appeared to be looking at something. We dont know exactly what that is. It may have been cctv video. We saw a number of cameras outside, also a farn sick van that was parked just outside and taking materials in and out. They took photographs of the exits and entry points at the gas station. It looks as though theyre trying to find out more information about where they were going and what they were doing at the gas station. We are learning more about the brothers in their early 30s one known to french authorities. Atika, this one suspect has a history with the Justice System in france. Reporter yes, cherif in particular Cherif Kouachi. This is a man known to police because of his involvement with an extremist network, particularlyparticular particularly he was put in prison in 2008 for trafficking or helping people recruiting them to travel to fight in iraq. He had a number of links to extremist groups and was involved in a plot it appears around 20102011 to free another extremist from prison. So this is somebody who was definitely on the radar of french authorities but its not clear if he was somebody who would be considered for example a tier one suspect or somebody who was more on the fringes. His brother, said kouachi, is less known, but theyre quite close in age, considered to be quite close so that may be one reason theyre involved in this together but we dont really know what Cherif Kouachi has been doing in the last few years. So this is the big question that french authorities will be looking to answer. What was he doing . Why wasnt he more closely monitored. Right, a tier one suspect which you mentioned, just to our viewers, that would be what french authorities consider the highest level of threat and would warrant basically round the clock observation, around the clock tailing. If theyre not a tier one suspect, they may be known to french authorities it doesnt mean theyre under observation around the clock. And this third suspect, the younger suspect who turned himself in, do we know much about him at this point . Reporter we dont know too much about him. What we know is that hes 18 years old, the police named him as hamyd mouraz. He saw his name on social media and turned himself in. We got in touch with someone who claimed to be a classmate of his, says he was in school at the time of the shooting. But he does appear to have some connection to the two other suspects and he was kept by police byfor some time and questioned. They havent released any details of what his connection is exactly. All right, Atika Shubert well continue to check in with you. The manhunt, huge amounts of resources here in france being devoted right now. I want to take a closer look now at the suspects themselves evan perez, cnns justice reporter joins me from new york. Evan you were reporting last night the u. S. Law enforcement were aware of at least one of these suspects. What are you hearing . Well thats right, anderson both of these suspects it turns out were on the u. S. Radar as a result of the fact that they were being watched by french authorities. As you mentioned these werent at the top of priority for french Law Enforcement. Theres hundreds and hundreds of these types of suspects in france and so its a laborintensive thing for you to do 24 . Monitoring. Cherif kouachi in particular was more worrisome but it doesnt appear the french had full surveillance on him the entire time. Thats one reason why he was able to show up yesterday and took some time before he figured out he was there. This is going to raise worrisome questions for france and u. S. And Law Enforcement everywhere where you have these foreign fighter problems where you have extremists who are talking about going to travel to join these jihadi causes because its almost impossible for you to have full monitoring on all these people and so you never know when one goes from being suspected of trying to do something to carrying out Something Like this. There are a number of transcripts from trials he was convicted in 2008 he wanted to target jewish targets in france but had been convinced by a radical cleric to actually focus on going to iraq on getting others to go to iraq as well. Right. This is weve seen the reports as well in french media. Its not clear exactly if the french authorities believed all of those claims whether this was just part of thes doier they had built up on him. Its interesting that very quickly yesterday if you compare what happened at the magazine yesterday and what happened in the boston bombing here in the United States it took some time for to you figure out who your suspects were. They pretty quickly started understanding who they were looking for, partly because one of these guys said kouachi, had left his i. D. Behind in the car, and that helped the investigation speed up and certainly quickly the french authorities sent information about these two guys to the u. S. To see what they had on them and thats what theyve been doing the last day, anderson trying to build basically a map, mapping all their contacts to see anybody who knows them theyve been in touch with because right now theyre trying to figure out who might have helped in this attack and whether or not anybody knew about it beforehand. And obviously of particular interest once these guys are caught would be for Law Enforcement to determine as you said their movements, their most recent movements and whether or not they have gone overseas whether its to syria or elsewhere and what kind of contacts if any they have with other groups. Right, and Anderson Well continue to check, go ahead, evan. I was just going to mention one last thing, one of the other things theyre worried about is if theres any followon attacks. The french are treating some other incidents that happened as possible terrorist incidents so the question is whether theres something larger here in the works, because these guys are still on the run. Are they going to carry out other attacks, are there other people they need to be looking for. Yes, evan perez, as i said well check in with you as developments warrant. I want to discuss more about this manhunt and the suspect. Im joined by Cnn National Security analyst peter bergen cnn Law Enforcement analyst tom fuentes and charlie winters from the Quilliam Foundation expert in islamic militants, he tries to counteract islamic extremism. Tom, what is your impression of the way so far that the search has gone for these two men . Well i think that the french Counterterrorism Forces are expending a huge amount of effort and resources to try to find the two men. There are many conflicting reports as to where where these guys are. Ive seen a few reports that theyre said to be driving near the gas station but later turned out that probably wont true. There is a dearth of evidence and its important everyone remains rational reporting this. People are watching this closely and are quick to jump to conclusions who is perpetrating offenses and what more is to come. Its important to maintain a rational head right now. Tom fuentes, as you watch this manhunt under way, how do you think its going . From the outside, anderson you dont know were these terrorists so stupid they accidentally left an i. D. On that front seat of the car or you know was somebody elses stolenism d. Known to Law Enforcement left on purpose to provide false leads . We just dont know and i think that thats all the type of leads as just mentioned you have so much false information, false sightings. The public tries to help but in many ways you get an avalanche of information thats hard to sort out which ones are good leads and which ones are not so good. Peter bergen the shock here that this magazine this newspaper would be targeted for these cartoons people asking could this happen in the United States. You actually wrote an interesting article that i read yesterday really detailing how this already has occurred in the United States in terms of people attempting or interested in killing people who have drawn cartoons of the prove ed muhammad muhammad. Yes, weve had four americans, anderson who have been involved in these conspiracies two serious, one David Coleman headley from chicago, instrumental in the mumbai attacks, killing 166 people. He spoekd out the newspaper which similarly to Charlie Hebdo published cartoons of the Prophet Muhammad in 2005. He had a plan to do a mumbaistyle assault on the newspaper, they were going to behead people in the building they were going to use multiple gunmen had some similarities to what we saw that went on in paris, and you may recall jihad Jane Colleen Larose the pennsylvania native who traveled to europe in order to kill another cartoonist swedish cartoonist lars vlix and two other americans in the United States conspiring to get people to kill the south park show creators who had an episode they portrayed muhammad in a way some people found insulting. Anderson astonishingly those seattle cartoonists, molly norris who has been living in hiding for many years because she did a campaign to do cartoons called everybody draw Prophet Muhammad day. She was advised by the fbi to go into hiding and as far as i can tell she remains in hiding many years later. Remarkable. Peter bergen charlie winter tom fuentes, thank you for being with us. This manhunt very much under way. I want to show you some of the remarkable pictures that we have seen over the last 24 hours. Tens of thousands of people wearing black, black stickers enclose claiming je suis charlie charlie, i am charlie. They showed solidarity with the victims of the terror attack occurring in paris. In the u. S. Hundreds turned out to show their support for freedom of expression with a boston is charlie rally. As we go to break take a look at some of the front pages of french newspapers and their headlines on the attack. Well be right back. 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The prutal massacre here in paris just a few blocks from where im standing counsel there, the offices at cherylie heb dough, a makeshift memorial where people are gathering. Authorities are ramping up security. In new york the nypd added extra officers to city landmarks including the french consulate. We bring in Deborah Feyerick who joins us with that story. Deb . Additional police have been deployed to these sensitive highvalue areas including the french consulate in manhattan. Nypd intelligence and counterterrorism units are analyzing at tacks closely, working with french authorities and getting real time information. This attack feels different. Could sue the hercules teams that are stationed in order to act as a deterrent and this attack feels different. The two gunmen conjure up images of isis fighters shall the tactics, execution of a Wounded Police officer on the ground in paris. These are images that many have seen coming out of syria and iraq and that is absolutely influencing how Police Investigate and treat this attack. I think what was most striking from the video, from both an intelligence standpoint and from a tactics standpoint is when you look at these two individuals, they have come prepared with their tactical clothing they have come with Tactical Gear including the magazine holders, the weaponry but the most striking thing is the level of calm and purpose through which they move through this entire event. And the great fear yesterday, Anderson Anderson before the gunmens identities were known, the fear is the attack would signal a new terror cell small groups of coordinated seemingly welltrained extremists harder to infiltrate hoarder to stop with direct links to terror groups. Their efforts to conceal their identity and make a getaway suggest they may have wanted to slip away and remain operational. So intelligence agencies right now, anderson mapping the suspects relationships, looking at the digital footprint, scanning database looking for terror connections and also looking to are any connections these individuals may have had have had with anybody in the you state and other european countries. Thats why the manhunt is on so strongly right now there is concern of course. These guys are armed and dangerous and could very well continue to attack if they remain at large. The massive manhunt for the two suspects in yesterdays attack brings back pafl memories for the people of boston. In 2013 the police placed the city suburb on lockdown went door to door to try to find the tsarnaev brothers after they allegedly placed two bombs at the Boston Marathon finish line. My next guest knows what its like when a city is on edge Daniella Linsky was the Incident Commander at the Boston Police department during the attack. Since retired daniel founded a Security Firm that specializes in training for attacks. Even after the two prime suspects are captured how do they figure out if terrorists are planning similar attacks . In france there have been a number of attacks over the last several weeks, people driving vehicles into pedestrians and a shooting last night of a female Police Officer killing her, though we dont know the motive behind that. This is a shift weve been afraid of in Law Enforcement, the terrorists were not going to go to their act where they die for their cause and the reign of terror ends that day. Weve been afraid that trained individuals would make attacks and multiple groups attack different cities and countries and go away and remain operational and continue to spread the terror. It doesnt end after the incident is over. Thats something weve been fearful of and what you see in france they have an Infrastructure Protection plan in place. After the attack you saw police and soldiers in the high visibility areas. If if for nothing else making people feel comfortable as they go about their daytoday