test. on this sunday night, terror in london. eight minutes of horror. the van running people over on the bridge, followed by the stabbing rampage. tonight eyewitnesses talk about how they escaped the deadly attack. the prime minister declares enough is enough, while president trump criticizes the mayor of london, pushing again for his travel ban. and after it all, moments of unity and defiance as the stars turn out in manchester. one-on-one. our exclusive interview with vladimir putin. tonight megyn kelly questions the russian president about the american president and his aides. cancer lifeline. the new system that is helping cancer patients live longer, and it's right in their own hands. and oh, thela

could there be anything better than a book by dr. suess? get ready, kids, for the dr. suess museum. "nightly news" begins now. good evening. today the details of that deadly attack that terrified london last night began to come into sharper focus as survivors told their stories. police have made arrests and say they're still searching for associates of the attackers, but they do believe they shot and killed all of the suspects directly involved last night. dozens were injured. and among those killed not only british citizens, but a french national and a canadian. today strong words from britain's prime minister theresa may. >> there is, to be frank, far too much tolerance of extremism in our country. enough is enough.

in on how best to combat terrorism. our team has been reporting on this all day, and we begin tonight with our chief foreign correspondent richard engel. richard, good evening. >> reporter: good evening, kate. isis has just claimed responsibility for this attack, but it offered no proof that it was directly involved. this was an extremely unsophisticated attack involving a few men, some knives and a van that was rented by the hour. but it's part of a wave of violence that this country is struggling to contain. just before 10:00 p.m., a van began to speed across london bridge, jumping on and off the curb, swerving into pedestrians, coming to a halt on a street filled with bars and restaurants. >> just to, you know -- >> car crash and accident. >> so the van came to a crashing stop? >> yeah. >> reporter: this group of lithuanian londoners out for a birthday celebration then saw three men

that nearly hit them, armed with knives. >> i think there was a bar manager. they stabbed him like ten times. >> he stepped in front of you. >> reporter: this cell phone footage shows the men walking calmly through the market, looking for their next victims. >> like a guy was running after me, but i managed to run away from you. >> reporter: so he was rung after you? >> yeah. >> reporter: s.w.a.t. teams arrived quickly and in force, ordering bar goers to get down. within minutes, all three suspects were killed by armed officers. the vests the attackers were wearing which look like suicide bombs turned out to be fakes. the rampage left seven dead and nearly 50 injured, many critically. british authorities say there is no connection to the recent bombing in manchester except that both cells were inspired by the same extreme jihadist views. now i

and relatives of the attackers to find out if they were part of a wider network. neighbors say at least one of the attackers lived in this apartment building in the outskirts of london, and that police detained multiple people from here for questioning. neighbors said the suspected attacker who lived here didn't stand out. >> was a nice guy. nothing from what i've seen from the two or three years i've been here, and i've known him as well, no complaints, nothing. just a bit of a shock. >> reporter: isis put out a call for attacks just like this one to be carried out during the muslim holy month of ramadan. last year isis put out a very similar call, and ramadan turned out to be a very glide month. so we may not have seen the last of this. >> richard engel in london for us. richard, thank you. while the british prime minister said enough is enough after last night's violence, she also spoke about obstacles to defeating the terrorists. prime minister may said terrorists must be denied the safe

spaces where they operate both online and in the real world. nbc's bill neely has more tonight on a country under siege. >> reporter: armed police ended this massacre in eight minutes. with overwhelming firepower. but this is the third attack in three months here. in march a driver rammed pedestrians on another london bridge, then stabbed a policeman to death. two weeks ago, it was a suicide bomber in manchester, killing 22. >> we believe we are experiencing a new trend in the threat we face. as terrorism breeds terrorism. >> reporter: things need to change, she said, but concede police action alone won't beat terrorists. you're scared? >> yes, i am. >> reporter: near the scene today muslims are afraid and angry. the police should do more? >> yeah, they should do more. >> reporter: not just the muslim community. >> you think we're saying oh, yes, it's okay? absolutely not. >> reporter: london's sl

>> i'm quite clear that we will never let them win, nor will we cower in our city as londoners. >> reporter: but the threats are huge. british intelligence agencies are running 500 active investigations of 3,000 people they believe pose an islamist threat. but up to 20,000 more are of interest. security services are struggling? >> they are struggling. they've been expanded hugely in the uk. they've doubled in size. but that still doesn't solve the problem. >> reporter: and this terror cell is now a dead-end. this search will provide evidence, but it may not prevent any future attack. there is no proof so far these three men were directed by anyone. >> what we're facing right now is a generational conflict. this is going to be with us for quite a long time. >> reporter: police tonight fear more low-tech copycat attacks, the hardest to predict or prevent.

attack surely no coincidence. just days before britain's voters choose their prime minister in thursday's election. the police here on high alert, and ordinary people here asking what's next and how do we stop this. kate? >> bill neely, thank you. for his part, president trump reacted quickly in his own way to the london attack with a mix of simple think, offers of help, criticism, and promoting his own security agenda. nbc's kelly o'donnell has more on all that. >> reporter: president trump's unconventional london response, sticking with his weekend routine. for hours at his golf resort spotted with peyton manning and senator bob corker. he had already offered the expected condolences. so today the president teed off on twitter. point one, we must stop being politically correct regarding the business of security for our people. point two, the president questioned the judgment of

london's mayor, who described the city as among the safest. >> london, as we'll see an increased police presence today and over the course of the next few days, no reason to be alarmed. >> reporter: president trump seized on those last five words after citing the casualties. "mayor of london says there is no reason to be alarmed." london's first muslim mayor sadiq khan and trump have opposed before. that was point three. president trump tweeted right after the attacks, we need the courts to give us back our rights. we need the travel ban as an extra level of safety. blocked by federal judges, the trump administration urged the supreme court to permit enforcement of its 90-day hold on visas to six muslim majority countries. democrats call it discriminatory. >> there is really no evidence to suggest that by banning muslims or banning muslims from a particular set of six countries, that we would make ourselves here in

>> reporter: some republicans, concerned about the specific ban, say the president has a point. >> we need to do a better job of vetting individuals who are coming from war-torn countries into our nation. >> reporter: tonight the president and first lady attend the annual gala to benefit ford's theater. it will be the first time the president is on camera, and advisers say it is possible he will comment on london. simply doing that would be a traditional leader response, even if president trump brings hi more hardened political edge. kate? >> and kelly, i know you'll keep an eye on that. kelly o'donnell, thank you so much. there is a heavy police presence tonight in portland, oregon, and threats of violence as hundreds of people gather for competing political rallies there. the protests come nine days after two men were stabbed to death on a train by a man shouting anti-muslim slurs. nbc's gadi schwartz is there and has our

face-off in portland. pro trump supporters at an event billed as a free spreech raleech rally. >> no fair, no fair, immigrants are welcome here. >> what you going to do about it? >> reporter: it comes just days after a hate-fill aid tack on a train. the suspect white supremacist jeremy christian charged with killing two men who intervened when christian yelled anti-muslim insults at two young women. >> this is my country! >> reporter: organizers of the rally say they had nothing to do with christian who had attend 1 of their events in the past. they said they kicked him out of the rally. following the train attack, the mayor of portland, fear mortgage violence, urged the federal government to deny a rally permit. but the rally held in a federal plaza was allowed to proceed. >> to me it's about free speech. it's about other people not being able to shut us down baas just because they disagree with what we think and say.

moving in at the slightest confrontation. >> coming in with an arrest. >> reporter: kate, i want to show you what's happening right now. you see police. police are pushing people back into this park. these interest anti-trump protesters. over here on this side of the street, this is where the pro trump rally was happening. right now this park is still surrounded by three sides of protesters. back to you. >> all right, gadi schwartz out in portland, thank you. bill cosby goes on trial tomorrow in a courtroom outside philadelphia charged with sexual assault. the case will focus on what happened one night 13 years ago between cosby and andrea constant. constant is expected to testify this week. kosgei bihas said he will not take the stand in his own defense. if convicted, cosby faces a maximum of 15 to 30 years in prison. and back to where we started tonight, to the uk and a show of unity this evening in manchester twoks

killed 22 people as they left a concert there. there was another concert tonight. this one a benefit in honor of the victims. nbc's kelly cobiella on the show of strength. >> reporter: in scarred manchester, 50,000 people facing the fear. >> you looked fear right in the face and you said no, we are manchester, and the world is watching. >> reporter: ariana grande back on stage 13 days after the bombing that injured and killed so many young fans. >> it was one of the best experiences of my life and then it turned into the worst. >> reporter: 16-year-old cara didn't think she would survive that night. in her wheelchair, she couldn't get to the exits. >> i went through all the things i've not done with my life yet. and it was really, really, really horrible because you heard everybody yelling for their parents, yelling for their children, their friends. >> reporter: she hopes to replace those memories with something better. >> you've got to show them they're not going to beat u.

hadn't come through. thousands came early, nervous, anxious, thinking of london. >> something's happened again last night. it's just really upsetting. >> reporter: police closed the streets, guarded the gates and searched every bag. two hours before show time -- >> you made it! >> i'm really excited. >> reporter: you're going to see her. >> i know. i can't wait. >> reporter: kyra with tickets and a brave face. tonight a chance to make new memories, to heal. 15-year-old olivia campbell was one of the first victims to be named. >> i had the pleasure of meeting olivia's mommy a few days ago. she told me that olivia would have wanted to hear the hits. >> reporter: tonight they're singing along and sending a message. >> for everybody and showing that we're unbreakable. >> reporter: tonight the red cross said they raised nearly $3 million in donations on the we love manchester website, and are hoping for

counted, money that will go towards supporting victims and their families. kate? >> kelly cobiella, one positive out of all of this. still ahead tonight, how ipads and other devices are helping people with cancer live longer. the fascinating results of a new study. also, inside the world of doctor suess. a museum dedicated to the man who do you really use head & shoulders? no, not really. i knew that not the one you think you know

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and the finding that an electronic lifeline can help people live longer. it's being reported by the american society of clinical oncology, and it's all about getting patients to report their symptoms so they can get the help they might need. our medical correspondent dr. john torres has the details. >> reporter: two years ago, cancer patient kathy was too sick to make the short walk from her home to the ocean. after three surgeries and 29 days of radiation, the side effects were debilitating. >> the pain was absolutely agonizing. i just thought that was the end for me. i really did. >> reporter: like so many patient, instead of calling a doctor, she suffered in silence. >> and i wasn't going to complain. you know, you suffered through so many different types of pains during these treatments you don't know when you should really worry. >> reporter: what many don't realize, symptoms from treatment aren't only dangerous, they can be fatal. >> side effects get out of control, they can be deadly.

us to catch things early and to intervene before they cause terrible complications. >> reporter: the system is a simple online questionnaire. in 12 quick click, patients at home can let their physician know how they're feeling. i tested the system to see how it works. what was the severity of your pain at its worst. i'll put that one very severe. >> and i just got an alert on my phone. >> reporter: and in that instant, an urgent message. >> telling the patient to call and the staff to call the patient. >> that's right. >> reporter: in a study conducted by memorial sloan-kettering, 766 patients reported symptoms over 7 years. the results, quality of life nearly doubled. trips to the er decreased by 17%, and patients were able to remain on chemo for two months longer. the most significant outcome -- >> patients do live longer when they are using the system. >> reporter: five months longer. that's better than the benefits of most cancer medicines. for kathy, it

one online question that made all the difference in her recovery. >> they decided to change my medication. i feel much better now. >> reporter: a new use of technology to make life better and longer for those fighting cancer. dr. john torres, nbc news, new york. >> just simple communication. when we come back, one-on-one with your eyes work as hard as you do. but do they need help making more of their own tears? one-on-one with if you have chronic dry eye caused by reduced tear production due to inflammation, restasis multidose™ can help... with continued use twice a day, every day, one drop at a time. restasis multidose™ helps increase your eyes' natural ability to produce tears, which may be reduced by inflammation due to chronic dry eye. restasis multidose™ did not increase tear production in patients using anti-inflammatory eye drops or tear duct plugs. to help avoid eye injury and contamination, do not touch the bottle tip to your eye or other surfaces. wait 15 minutes after use before inserting contact lenses. the most common side effect

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about his interactions with members of trump's team, including former national security adviser michael flynn. >> he came over here for a dinner, a photo of which has been widely circulated in the american media. what was the nature of your relationship with him? >> translator: you and i, you and i personally have a much closer relationship than i had with mr. flynn. you and i met yesterday evening. you and have i been working together all day today, and now we're meeting again. when i came to the event for our company, russia today, and sat down at the table, next to me there was a gentleman sitting on one side. i made my speech. then he we talked about some other stuff and i got up and left. and then afterwards i was told you know that was an american gentleman. he was involved in some things. he used to be in the security services. that's it. i didn't even really talk to him. that's the extent of my acquaintance with mr. flynn. >> so we went

and for the first time he speaks directly to his relationship with kushner and what kushner did and did not do. and then i went on, kate, to ask him specifically about whether the kremlin has anyone damaging information on president trump. >> you're not going tell what's that? >> you have to thune in tonight. >> beyond that, you have a story on elephants in kenya with harry smith and how they're trying to save them. >> tens of thousands of these animals are being killed by poachers every year there is a woman who has given up her life to go fight this problem. the way she is doing it is revolutionary, and america will fall in love with fay cuevas tonight. >> you can watch all of it here on the debut of "sunday night" with megyn kelly, 7:00, 6:00 central time. coming up here, the life of a creative jeebious. what if technologys of gave us the power to turn this enemy into an ally? microsoft and its partners are using smart traps to capture mosquitoes and sequence their

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finally tonight, if you and your kids or maybe your grandkids can't get enough of dr. suess' "oh the places you'll go," now there is a place you can go to immerse yourselves in all of his greatest stories, a new museum dedicated to the life and work of the man who has been a household name for generations. it opened this weekend, and our kevin tibbles got a preview. >> reporter: everyone's got a favorite. >> "green eggs and ham." >> the lorax. >> reporter: and why not? no one makes learning to read more fun than dr. suess.

one fish, two fish, redfish -- >> blue fish. >> reporter: and fun is what this new museum is all about. >> no! >> he wanted children to pick up a book and not be able to put it down. >> reporter: theodore gaisal was dr. suess. in fact, suess was his middle name. and he hailed from right here in springfield, massachusetts. >> ladies and gentlemen, if you'll give a warm welcome to dr. suess, mr. ted gais gaisal. >> reporter: hello. >> reporter: even his home study where he breathed life into so many characters has been restored here with the assistance of his stepdaughter, lee gray diamond. >> we have his easel and work table and chair and his pencils and his oils. we have the actual papers that he worked on. it's the only time you're ever going to see anything like this. >> reporter: publishing more than 40 books,

more than 650 million copies worldwide. do you like green eggs and sn and ham? the biggest treat of all a kid's expression when you're read one of the stories. i will not eat them here or there. i do not like them -- >> anywhere! >> there is always that kindness, and kindness is timeless. and the sense of fun is timeless. >> reporter: and on this fun day, a new generation learns the more that you read, the more things you will know. and the more that you learn, the more places you'll go. kevin tibbles, nbc news, springfield, massachusetts. >> all the thinks you think. that is "nbc nightly news" for this sunday night. lester holt will be back in tomorrow. i'm kate snow reporting from new york. for all of us here at nbc news, have a great night.

welcome to "sunday night." i'm megyn kelly. ♪ ♪ >> do you have something damaging on our president? >> tonight, an nbc news exclusive. >> translator: this is just another load of nonsense. >> a tough conversation with russian president vladimir putin. >> translator: why do you feel you have the right to ask us these kind of questions, to moralize and give us lessons on how to live. >> reporter: american elections, russian hacking, and worldwide controversy. >> are they all lying? and cynthia mcfadden investigates stunning claims about a drug company.