The most aggressive and deadliest kinds of cancer, doctors calling it a wakeup call for men to be screened. Nightly news begins right now. Announcer the Republican National convention, this is nbc nightly news with lester holt reporting tonight from cleveland. Good evening. As we come on the air in the pacific time zone, the Melania Trump plagiarism controversy buzzing around this convention hall, and we have new elements of the unfo unfolding story whether the speech last night contained the same wording as Michelle Obamas speech in 2008. This comes the same time as the voting for the republican candidate for president. Reporter new developments as there are accusations Melania Trump plagiarized parts of the obama speech. They claim they hired Matthew Scully to draft those remarks, the documents submitted showing none of those. The changes were made after it was delivered to the campaign. Some sections striki strikingly similar to Michelle Obamas to the 2008 convention. The values you work hard for what you want in life. That your word is your bond and you do what you say you want to do. A senior trump aide tells nbc news scully created an early draft that was rejected and the process started over and discovered certain passages from the original did appear in Melania Trumps speech but not those in question. And Melania Donald trump not blaming any speech writers. We hired speech wri writers. It wasnt plagiarism. These are common values. Melania trump said you work hard for what you want in life. John legend said, you work hard for what you want in life. My little pony, this is your dream. Reporter struggling to stay on message. It w the speech itself was graceful and now were not talking about the speech, the process it was produced. That indicates a campaign not ready for primetime. Reporter after night ones grand entrance it was to show trumps softer side highlighting the mother of the victim of the benghazi attacks. How could she do this to me . How could she do this to any american family. We need to get our country back. Were headed in the wrong direction. He is the man to bring our country back. For trump, racing to lock up conservative support, those are the words hed rather be talking about. Reporter bottom line, it is still not sure who is responsible for the similarities in the speech. Two more will take the stage tonight from Donald Trumps home state, ready for the headlines. Lester. Hat was halle on the floor tonight. And thank you. Donald trump was formally nominated this evening as the republican candidate for president. Whats the latest . Reporter we just moved outside the trump familys vip box and you can see donald trump, jr. And his sister waiting. Within the last hour the siblings all stood together for the new york delegation when they put their father on top with the 1237 delegates he needed. Take a listen. It is my honor to be able to throw donald trump over the top in the delegate count tonight with 89 delegates reporter like that, the party began, the trump family enjoying this moment even with the recent controversy. It was the last gasp for the antitrump movement. Any effort to embarrass the candidate, that failed. You can drop presumptive and now donald trump is now the formal nominee for the republican party. I will bring in, if i can, chuck todd and savannah guthrie. This campaign has breezed past a lot of controversies, why is this one more difficult to get past . I think they are making it more difficult for theirselves. In the best scenario, somebody made a sloppy mistake and maybe it raises questions nobody caught it. Today, to have an array of surrogates say with a straight face they didnt hear what you clearly can hear portions of the speech almost identical wordforword now you have a question of credibility of the campaign on top of the confidence. People know what they heard and willing to forgive it. For the Campaign Surrogates to say, this wasnt lifted, this wasnt a mistake, your ears are decei deceiving you. I think they compounded a problem and made a story that could have been over by breakfast time and continue to tonight. Let me go to chuck. This actual nomination process hasnt gone without conflict. It hasnt but its been smoother today than yesterday. The other issue was this could have been a speed bump, a hiccup and they move on. Its been emblematic of this entire convention and rollout. I call this establishment tonight. You will see elected republicans quietly make the case for trump. Are they making the case for trump or just against hillary clinton. We did not hear a lot of pro trump speeches last night. We heard anticlinton speeches. He needs pro testimony. All right. Tonight were learning about details of an afghan teenager promising loyalty to isis and with an ax and knife killing people at random. Holding a knife and calling himself an isis soldier, this 17yearold promised a suicide mission. Then, with an ax and a knife, he randomly slashed passengers on a train, shouting god is great. Five people were badly injured before he was shot and killed. German intelligence say he made no direct contact with isis. Recently. He lived at this center with other refugees, after apparently traveling alone from afghanistan last year. Its just the latest terror attack stunning europe. From the man near paris, who stabbed to death two Police Officers last month. To the truck driver in nice, who killed 84 people. Killers who appeared from nowhere, for intelligence agencies, attacks that are almost impossible to predict or prevent. Bill neely, nbc news, london. Back here at home, it is sweltering out there for much of the country, with the heat wave putting some 44 Million People under warnings and alerts in 16 states from louisiana all the way up to minnesota. Many areas seeing triple digit temperatures and more are bracing as the scorching heat moves to the east. President obama has a new message for the nations Police Officers in an open letter, quote, we have your back after the recent deadly ambushes on law enforcement. Its a dangerous job and just today Police Captain was killed in kansas. Departments nationwide are on alert. Tonight our Miguel Almaguer goes out on the front lines. Reporter Deputy SheriffBrian Anderson patrolling the streets of los angeles today. Danger is nothing new for this 14year veteran. But in the wake of Police Shootings in dallas and baton rouge, these are changing times. When something tragic like this happens, it should stren h strengthen our resolve to be mindful, to be safe. Reporter just last month, two deputies were shot in andersons division, now helicopters are launched more often to help. Dispatch centers are changing the way they screen 911 calls and fewer officers are working alone. How do you know the next call is not a trap . You dont. Reporter while we were patrolling today in los angeles, another officer was shot and killed in kansas city. This has been a particularly deadly year. 32 officers killed by firearms so far. Up 78 from this date last year. For their families, sleepless nights. My son used to want to be a Police Officer and he doesnt anymore. Reporter in indianapolis, a son and daughter pray for their daddy before his shift. Its the small things that make a big difference. Blue lights for blue lives in denver. A Lemonade Stand for Police Working the beat near reno. Thank you. Reporter a dangerous job where uncertainty is the only thing thats certain. Miguel almaguer, nbc news, los angeles. Tonight, 21st century fox news is swirling amid news that legendary roger aisle has been ou ousted. The company says an ongoing review is being held against ailes who has been a towering force for republican politics for decades, even before the existence of fox news. Nbcs Cynthia Mcfadden has late details. Reporter reports circling tonight that fox news chairman and ceo, roger ailes, is on his way out. This in the wake of a highly publicized claim of Sexual Harassment by gretchen carlson, who says that ailes fired her in june after she rebuffed his advances, a claim aisle denies. Ailes turned fox news into the political powerhouse it is today with revenues last year with more than a billion dollars. Aisle is fox news. Theres not a detail of fox news that ailes does not have his fingers on. He is the person who is most central to his organization and the product it produces. Reporter ailes rise included working as a Media Consultant with a mt. Rushmore of republican president s, richard nixon, Ronald Reagan and george h. W. Bush. Database but as the founder of fox news, he solidified his reputation as a king maker, working closely with Rupert Murdock, the executive chairman of 20th 21st century fox. Its always been a good working relationship. Roger ailes provides the one thing that Rupert Murdock likes most and really cant do without which is money, an enormous amount of money. Reporter a year ago murdock put his sons, lakland and james, in charge of fox news. A source with direct knowledge of the situation told nbc news, the brothers wanted ailes out even back then. Today, the drudge report posted a document that purportedly appeared to be the 20 million separation agreement between aisle and 21st century fox. The document was almost immediately taken down. The company followed with a statement tweeted out shortly after. Roger is at work, the review is ongoing, the only agreement that is in place is his existing employment agreement. Still ahead here tonight, a cynthia mcfaddcfadden, nbc news york. Still ahead here tonight, a new warning about an alarming rise in a deadly form of cancer soaring 72 in the last decade. Are the screening guidelines that millions trust to blame . Also terrifying moments as a crane collapses on a busy bridge that more than 100,000 use daily. Were back now with a wakeup call about the second most commonly diagnosed cancer among men, Prostate Cancer. A new report shows a dramatic increase in new cases of the deadliest most aggressive form of Prostate Cancer. And as nbcs ron mott explains, crazy new questions about the guidelines for screening men. Reporter theres alarming news about the deadliest kind of Prostate Cancer, it is on the move. A new study of 800,000 men in Northwestern University found a dramatic increase in advanced cancer cases, a 72 jump in the last decade, the largest surge, men 55 to 69 almost doubled in number. The goal is to look at the numbers. Reporter study author dr. Edward shaffer says the possible reason is the disease may be turning more aggressive and fewer men are getting screened. I think the take home message for the study really is that we need to be certain that were on the right track and really maybe rethink how were crafting our guidelines to screen men with Prostate Cancer. Reporter when caught early, Prostate Cancer is virtually curable, with survival rates nearly 100 . But if its diagnosed after its spread, about threequarter of patients die within one year. Psa screenings have dropped. In my mind, the data is very clear that screening for Prostate Cancer saves lives. Reporter the American Cancer Society recommends men with an average risk be screened starting at age 50. Age 45 for those with increased risk, a Family History or africanamerican. Joseph levinston says a psa test saved his life. He was treated successfully for advanced cancer at m. D. Anderson in houston. Totally shocked, you dont realize how valuable life is until youre faced with the fact that you possibly wont have any more of it. A beatable cancer, if only its caught in time, ron mott, nbc news, chicago. Were back in a moment with something jaw dropping about the game millions of americans are addicted to. A scary scene today on a major span crossing the hudson river north of new york city, a crane crashing down during construction on the tappan zee bridge. Three people were injured but amazingly no one was seriously hurt. It triggered a traffic nightmare with the traffic shut down for hours. The mobile game where players catch little monsters is a monster hit. Nintendo, the Company Behind pokemon go is now worth more than double than it was before the game was launched two weeks ago. With an estimated 26 million users in the u. S. , its the biggest mobile game in history. Big things are in store later this evening when donald trump or someone who looks a whole lot like him returns to nbcs tonight show, starring jimmy fallon. Heres an exclusive sneak peek. Well keep on fighting until the end anyway, its been a Great Convention so far, last night was fantastic, it was huge. Did you see melania . She stole the show, literally. How great was scott baio . Wasnt his speech great . Wasnt it fantastically huge . I loved it so much, im going to put charles in charge of the Nuclear Launch codes. Last night you heard from antonio sabado jr. From general hospital. Tonight, you heard from Kimberlin Brown from the young and the restless and the rest of the week, youll be hearing from all my children. Don jr. , ivanca, eric . If you want to see the rest you have to come back. How social media keeps throwing twist after test into this wild alaska season. John kasich, and 11 votes for my friend and the next president of the united states, donald trump Corey Lewandowski announcing the tally for donald trump tonight. Finally, we have seen it time and time again in this election, social media, the way the candidates use it and the way it can turn small tremors to fundamental earthquakes and how it can change the course of history. Tom brokaw is the selfdescribed old dog learning new tricks. Reporter on the second floor of a parking garage, the future is here. We have 30 million subscribers. Every channel has a different audience. Reporter the digital universe, made up of dozens of booths. Two and three people who are following the president ial candidates on instagram are voting age millennials. Reporter in the last 24 hours, 8. 5 million americans have posted almost 30 million upons on facebook alone. In the last 30 days, 27 Million People have talked about mr. Trump. Reporter at google, second by second snapshots of what the voters are thinking. People are searching donald trump and police, donald trump and race issues. Isis. Reporter four years ago, data such as this had a 36hour lag time, now its mere seconds. What about people who are reading this and say at the end of the day, im going to vote with my heart, not with my head. Thats the one thing that we dont know. Reporter much of social media is apolitical. They serve up the mood, you decide. But conservative news organizations use social media to expand their social views. We have over 2 million facebook likes, so we have been growing like crazy, mostly because we articulate news and information that people cant get elsewhere. Reporter until recently, candidates depending on newspapers, Television Networks and cable to get their messages out. Donald trump became the First Digital intense candidate combining rallies with conventional media, and the new forms, especially twitter. The question is, can he keep it up and tweet his way to the white house . Our tom brokaw reporting tonight. Thats going to do it for us for now, im lester holt, ill see you tonight at 10 00 p. M. Eastern, 7 00 pacific for prime time coverage of the Republican National convention. For all of us at nbc news, thank you for watching. Good night from cleveland. Allegations of ab buys against deputies. The latest case against the embattled puente county share lives office. Nbc bay area starts now. Im Terry Sweeney in for raj mathai. A dash ram ka caught it all. Santa clara county accused of roughing up and injuring a woman during a traffic stop. A story youll see only on nbc bay area. Robert handa joins us from the bay area courthouse. You have the story. Reporter this case has been litigated and behind closed doors. Even though the deputies are no longer with the department, the case wont be going away any time soon. The dash cam videos from the video of deputy dan harris, he asks loudly about why her car has stopped. Why are you [ bleep ] stop . Forest pulls chang over and approaches the car. Chang continues to argue with deputy forest. When her hand makes contact with his flashlight and his hand, the encounter turns very physical. Reporter legal analyst Stephen Clark analyzes the video. When you start with the way the Citizen Contact was it