And our will is stronger. In the shadow of big ben, politicians and people of all faiths attend a vigil, three candles are lit for each of the victims of the westminster attack. And berlins Brandenburg Gate is bathed in the union flag as cities around the world show solidarity with london. It has been a sombre, reflective day at the palace of westminster. We are on the edge of the peace corps in which is still in place as we speak. The police are still concluding the final investigation. It has been a sombre, reflective day at the palace of westminster. The thoughts of everyone remain with the family of the murdered Policeman Keith Palmer and two other People Killed as they walked across Westminster Bridge yesterday afternoon. In total 29 people were injured, among them 13 nationalities, several we are told remain in a critical condition. This morning, parliament paused for a minutes silence in the chamber. The queen expressed her sympathies for those killed and in the past hour hundreds of people have gathered for a vigil in Trafalgar Square, just a short walk away. Candles were lit for the three victims who lost their lives, with many more lit among the crowd. We know much more about the man suspected of carrying out the attack. Khaled massood, a 52 year old british man from kent, he had a number of previous convictions for violence, and he was on the periphery of a Terror Investigation some years ago, though he was not currently on the radar of the Security Services. This evening the police said that eight people, three women and five men, have been arrested in london and birmingham on suspicion of preparation of terrorist acts. Let s get our first report from our special correspondent, lucy manning. With a car and a knife, he brought terror to parliament. He is the lead masood, a british born attacker, known to the police with a 20 year criminal record, though not for terrorism. The 52 year old responsible for the murder of a policeman, a mother on her way to collect the children and. The lead masood was born in kent and was most recently living in the west midlands. He had a range of previous convictions including gb huge, possession of Offensive Weapons and public order offences. His last conviction was in 2003 for possession of a knife. He was also known by a number of aliases and he was known to Security Services. What ican was known to Security Services. What i can confirm is that the man was british born and that some years ago he was once investigated by mi5 in relation to concerns about violent extremism. He was a peripheral figure. The case is historic. He was not part of the current intelligence picture. There was no prior intelligence of his intent or of the plot. Intensive investigations continue. Just metres from where the Prime Minister spoke, on their knees, police slowly, meticulously searching for evidence on the same ground where one of their own lay just yesterday to stop determined to find out everything they can about the man who murdered Pc Keith Palmer in the shadow of the then and ran over those are just walking on Westminster Bridge. Notjust routine police work, this time, it is personal. Across the country, overnight, police swung into action. A flat in birmingham was raided. Neighbours said they thought masood lived there recently. Also in birmingham, in the ladywood area, filmed by neighbours, heavily armed officers searched another flat. Locals said it was like a scene from the film. Like a war. Down the street, like something you only see in movies. I saw it from behind my windows on the street. It was very frightening. It was like, what the hell is happening here . As well as searches in Birmingham Police also raided homes and made arrests in the forest gate area of east london. In wales, surrey and sussex, a total of eight people have been arrested in six separate locations. It is now known the people he turned into a weapon was a rental car he retired in birmingham in the Spring Hill Branch of enterprise cards. There has been Intense Police activity all day in birmingham. With the attacker dead, the focus is on his friends and family, whether they knew about his motivations, his intentions, whether he had only help with the attack on parliament. It is still oui attack on parliament. It is still our belief, which is point out about oui our belief, which is point out about our investigation, that the attacker acted alone and was inspired by international terrorism. To be explicit, at this stage, we have no significant information about further threat to the public. So called Islamic State, without providing any evidence, and the attacker was, as they described him, one of their soldiers. The police are now attracting masoods movements. The man who put into a carand movements. The man who put into a car and drove terror into the heart of westminster. There is a lot of discussion about the investigation. Each of these stories about the victims seems heartbreaking. A lot of people have spoken about how london must pick itself up and get on with it. We will do that, because we have been here before, but there is heartfelt sadness for the three victims. In Terrorist Attacks are always tragic stories but particularly so in this insta nce stories but particularly so in this instance because you have a mother who was crossing the bridge were going to pick up her daughters who we re going to pick up her daughters who were waiting in a school. I am a father, you can imagine what it must be like for children to be working there for the mother who doesnt arrive. Kurt cochran and his wife, melissa, who worked at the end of a vacation. They probably spent a lot of money on it, they had been around europe, they came here to see her pa rents europe, they came here to see her parents who are working in london. They are mormon missionaries. They we re they are mormon missionaries. They were due to go back today and then, of course, the story of Pc Keith Palmer, he gave his life to service in the Royal Artillery and then in the Metropolitan Police. When eve ryo ne the Metropolitan Police. When everyone was running away from the violence, he was running towards it and without a weapon. Just selfless bravery which is sad indeed, when you reflect on what happened to him. Londoners will get on with it but in the mind of everybody as they make their way home, they will be thinking especially of those three people. Lets speak to our security correspondent, frank gardner. We are learning more about coloured masood. Not a typical profile, quite old and he has not been inside since 2003. Yes, unusual. He was known to the police and mi5, but he was not an anti terror watch list. He had an extensive record for petty crime, mainly for violent assault, possession of a knife, grievous bodily harm, but he had not been in trouble with the law since 2003. He was peripheral. He was not an anti terror watch list. That is quite worrying because there will be many others like him. He was relatively old for a jihadist, 52. It is not unheard of. There was somebody who blew himself up in iraq, the britishjihadist, if you weeks ago and he was 51. Generally, most jihadists weeks ago and he was 51. Generally, mostjihadists are in their weeks ago and he was 51. Generally, most jihadists are in their teens and 205. Most jihadists are in their teens and 20s. We had this situation yesterday where we had 68 nations meeting here in washington, promising to commit themselves to try and eradicate the threat from islamic terrorism. What have these these terms like soldier of Islamic State and we dont know what that means, that shows just how difficult it is, doesnt it . That is Islamic State digging itself up. It is possible they didnt know about this and there were no actual communications between Islamic State and this man. It is possible that a posthumous video, in martyrdom video, will appear afterwards. He does seem to have largely acted on his own. There is no such thing as a completely lone wolf attack. There will be digital footprints. Gchq will be digital footprints. Gchq will be digital footprints. Gchq will be looking into what is encrypted on his computer to work out who he had been in touch with and who he had met. Forensics will look at the fingerprints in the car to see who else had been in it. He isa to see who else had been in it. He is a strange character. Born in kent in south east england, he lived in luton which has been described as a hotbed of islamic fundamentalism, where some people referred to him as the vampire because neighbours said he would always go out only at night and dressed in black. The body is suggesting he drank blood, but he was a strange character, very conflicted and this is a very typical. A large number ofjihadists attackers have a criminal or violent records that have nothing to do with terrorism and it is hard to spot them. Thank you frank. The British Foreign secretary, Boris Johnson them. Thank you frank. The British Foreign secretary, borisjohnson has been here in the us since tuesday attending the meeting of the coalition against so called Islamic State. This morning, he appeared on msnbcs morning joe where i spoke to him about the attack. The Prime Minister said Something Interesting which points to a problem with Intelligence Services, which is that this figure had been peripheral in previous investigations, but was not currently part of any intelligence investigations. It is hard, isnt it . Intelligence services have to prioritise and they clearly did not prioritise and they clearly did not prioritise this individual. It has happened before with the leader of the 77 happened before with the leader of the 7 7 attacks who was under surveillance and then it wasnt under surveillance, how do we make those choices . I understand where you are going with this. This is not something i can get into. Suffice it to say, we have, in london, as is almost certainly the case in new york and many other great metropolises, there are a number of people who are under surveillance, people who are under surveillance, people who are objects of concern. The important thing to realise is that the kind of extremism that they espouse is dangerous, it all too often espouse is dangerous, it all too ofte n Lea Ds Espouse is dangerous, it all too often leads to their involvement, or there would be involvement in terrorist acts. I am afraid they require a huge amount of surveillance, of monitoring and they move up and down the hierarchy of risk. The Foreign Secretary sounded like i was trying to criticism. It is far too early to know whether the Security Services demand some kind of criticism. What i was 20 point out is that it is almost impossible, with the resources that Intelligence Agencies have and equally self, to monitor everybody permanently good comes on their radar. As frank pointed out, this is not an obvious candidate and he had been off the radarfor candidate and he had been off the radar for a candidate and he had been off the radarfor a long time. These are difficult choices for all western nations to make. Absolutely. As a former paris correspondent when i was in france, the french authorities said this all the time. They had thousands of people on there at risk list. The people they thought were a risk to French Society and they couldnt monitor them all times. They have to pick those who are the biggest risk of one particular moment and some drop off the list, dropped off the radar and come back on them. I have seen that happen. I can also think of two incidents, one in 2014, similar to this. A man was shouting is slogans out of the window, injured 13 people and he was not, in the strictest sense, a trained islamicjihadist. He had not been to syria, he was not a soldier of islam, if you will, he was someone a soldier of islam, if you will, he was someone who a soldier of islam, if you will, he was someone who was a soldier of islam, if you will, he was someone who was deranged, suffered from depression. The same was true of the man in nice. He suffered from depression, a loner, broken relationships, petty crime and it looks, and there is a lot we need to find out, but it looks like the masood might 50s in profile. That is difficult to tackle, especially when they are not using conventional weapons. There are times Intelligence Services do make m ista kes times Intelligence Services do make mistakes and we will open them up to scrutiny, but it is worth recognising that these are incredibly difficult choices that have to be made with limited resources. Have to be made with limited resources. Absolutely. You have to have a discussion within countries about how much you put into security and how you close your society. We respect and like the fact that it is free here, especially in this village in westminster where people can go into parliament. How much security do you around it will be a debate for the weeks and months to come. Emotions here have been running high within the uk parliament. Mps paid tribute to those who died, including police constable, keith palmer. There was a personal response from an mp who once served with pc palmer in the armed forces. The Prime Minister theresa may said, we will never waver in the face of terrorism. The streets are as busy as ever, the offices of food, copy shops and cafes bustling. As i speak, millions will be Boarding Trains and aeroplanes to travel to london and see for themselves the greatest city on earth. It is in these actions, millions of acts of normality that we find the best response to terrorism. A response that denies our enemies their victory, that refuses to let them win, that shows we will never give in. A response driven by that same spirit that drove a husband and father to put himself between us and our attacker and to pay the ultimate price. Himself between us and our attacker and to pay the ultimate pricelj would like to turn for a moment to pc keith, who i first met 25 years ago has gone keith palmer at headquarters battery, Royal Artillery. He was a strong, professional public servant. It was a delight to meeting here again only a delight to meeting here again only a few months after being elected. Wood my right honourable friend, the Prime Minister, in recognition of the work that he did and the other Police Officers and Public Servants here in the house do to consider recognising his gallantry and sacrifice formally a posthumous recognition . Well, i thank my honourable friend for the obvious compassion and passion with which he has spoken about an individual eu and he bears witness to the tremendous Public Service that keith palmer had given this country in so many ways. Having served in our armed forces and then come here to this place and paid the ultimate sacrifice here at our heart of democracy. I can assure my honourable friend that the issue he has raised is one that will be considered in due course. A difficult day for many mps today. They were locked down for hours yesterday at not knowing what was going on and the palace. Let me introduce you to harriet harmon, former deputy leader of the labour party. He spoke today at the debate. Tell us what your thoughts are tonight. We all felt very sad indeed for the pc who lost his life defending us, keeping us safe and our heartfelt sympathy goes to his family. Also, isnt that the House Of Commons had to be business as usual. We were not going to let this crime prevent us doing ourjob and fear and concern about the people who are still lying in hospital, but a sense that, as an act of terror, this is field. As a crank killed and injured people and it was a horrific crime. People will still, as they are tonight, go about their business in london. There has been a lot of focus about courage he just behind this at the foot of the then. He managed to get through the gate. It isa managed to get through the gate. It is a busy gate. You are the longest serving woman in the commons and i said that because you will have seen over the years how secure how security has changed. Are you happy with security as it is tonight . In 1982 when i first became a Member Of Parliament there was no system of passes, there was no security at all. People would just walk in and out. That might be one or two police on the doorjust to show the public where they could go to see their mp and then there were the ira threats, so there was security raised then and then there was alqaeda. 0ver the years, the security has been increased. Very reluctantly anyway, because one thing parliament values is its relationship with the public and its accessibility. There would be sensible, thorough review of this awful crime and there will be sensible precautionary measures. We are going to carry on going on with our business. We also value the fact that our policemen did not carry weapons. We are different to the united states. This is an area of london disposed of risk. This is one of the main targets in the country, so should these policemen just behind us, shouldnt they be armed . Some of them are armed and some work without weapons as pc, was unharmed. There would be a discussi