recovered during the fbi search of mr. trump's florida home. the most detailed allegations yet in the investigation and what the filings suggest about the legal trouble the former president may face also tonight, the fda authorizing new covid boosters specifically targeting omicron subvariants. who's eligible and how will they work the long lines in mississippi as the water crisis worsens. schools forced to shift to online learning. is there an end in sight the u.n. team arriving to inspect that embattled nuclear plant in ukraine their dangerous mission into the battle zone. the historic heat wave, nearly 50 million on alert the disturbing body cam in ohio, police shooting an unarmed man in his own bed the investigation tonight. the new rules to compensate airline passengers facing delays and cancellations after a summer of travel chaos. and remembering princess

diana. the tribute 25 years after her tragic death >> announcer: this is nbc "nightly news" with lester holt. good evening an otherwise tight-lipped department of justice is speaking loudly through its court filings. overnight shedding glaring new light on its search of former president donald trump's mar-a-lago home and revealing why it believes that trump team has intentionally misled the government about the whereabouts of the items recovered during its search government lawyers releasing a redacted photo showing documents and classified cover sheets they said were recovered in mr. trump's mar-a-lago office. investigators tonight leaning into the possibility there was obstruction of justice the court filing, a response to mr. trump's request for a court ordered independent review of the items, riling up the former president who mocked the fbi and the photo online posting, "thought they wanted them kept

secret lucky i declassified," a claim that has not been established. kelly o'donnell with the latest. >> reporter: this one image revealing distinct color coded markings for top secret and sensitive files. evidence, the government says, seized from a container inside the 45 office. the florida domain of former president trump. where he often receives guests the department of justice in a court filing lays out serious allegations in stark new terms government records were likely concealed and removed. and that efforts were likely taken to obstruct the government's investigation the doj alleges team trump provided inaccurate information when they turned over 38 classified materials at a june 3rd meeting. citing this declaration where an unnamed trump associate swore that a diligent search was completed to locate any and all documents subpoenaed

however, the fbi developed evidence that dozens of additional boxes remain. then august 8th, the day of the search, the fbi found over 100 unique documents with classification markings. including three classified documents that were not located in boxes but discovered loose in desk drawers in the 45 office. pointing to the gravity of secrets, the doj said some fbi counter intelligence personnel and doj attorneys required additional clearances to even review the documents >> my father-in-law said he has nothing to hide. he did nothing wrong >> lara trump says the investigation has been political. >> this is such a bad look i think for the department of justice now because it goes to further the notion that they are targeting donald trump >> reporter: today on social media, mr. trump reacted to that

officials say the evidence was placed for the photo. evidence photo calling it terrible the fbi threw documents all over the floor. officials say the evidence was placed for the photo >> and kelly joins me now. >> well, the former president has asked the co we're waiting another federal judge to rule on a key decision that could determine the course of this investigation. what is next >> well, the former president has asked the court to appoint that independent observer to review all the seized documents. the department of justice has argued that mr. trump's situation here does not qualify for that special master and says appointing one would hinder the ongoing investigation. we'll learn more tomorrow. lester >> kelly, thank you. the doj in that filing making clear that this case is not just about recovering mishandled documents but the possibility that a crime may have been committed. hallie jackson now on mr. trump's potential legal jeopardy >> reporter: this evidence doesn't need a thousand words. maybe only six is donald trump in trouble legally? the new filing from the doj

suggests but does not prove a couple of crimes may have been committed. first, obstruction of justice. the filing points to that saying the classified records were probably concealed and removed in mar-a-lago. it's not clear whether mr. trump knew where they were though it's worth noting the filings is several documents were in his office desk and it's prosecute the former president on any obstruction charges. not even clear the doj would ultimately want to prosecute the former president on any obstruction charges. >> the prosecution of a former president would be unprecedented. they still have to have a very difficult discussion about what they ought to do not what they could do but what they should do. >> reporter: a second possible crime -- lying to the fbi. the doj saying since their team found 100 pages of documents in a matter of hours, it casts serious doubt that they did a diligent search for classified material like they said. here again, key information is not clear like whether mr. trump directed his lawyers on what to say. >> because the facts are so strong here, they can only really hope that merrick garland

uses his prosecutorial discretion to say, it's not worth it >> reporter: some conservatives suggested mr. trump should be held to the so-called clinton standard arguing if hillary clinton was not prosecuted for her handling of classified information, mr. trump should not be either >> i'll take it in terms of the result >> reporter: but experts say this is not that for several reasons. for example, the fbi at the time cited a lack of an effort to obstruct justice. >> we do not see those things here >> reporter: but in mr. trump's situation, it's complicated. >> that investigation of ms. clinton is over. so we know the facts this investigation of mr. trump is ongoing so there is plenty of stuff we don't know >> reporter: if any action is taken against mr. trump, it may not happen until after the mid terms depending on whether the doj applies the custom of taking no overt steps in the weeks before an election lester >> hallie jackson, thank you another major story, the fda authorizing new covid booster shots that specifically target those highly contagious omicron subvariants.

stephanie gosk now with what you need to know >> reporter: the fda says new boosters from pfizer and moderna take direct aim at omicron granting both emergency use authorization. >> these updated boosters are critical >> reporter: the federal government bought 66 million doses from moderna and 105 million from pfizer. yesterday we got a look inside pfizer's michigan production facility this is the final stage in the process. these doses are all ready to go and to be shipped. they have to be frozen again in the special freezers that's why they're packing them back in as quickly as they can the cdc expected to sign off this week and then anyone who received the original vaccine is eligible for the updated booster as long as their last shot was more than two months ago ages 12 and over for pfizer and 18 and over for moderna. human trials are still being done but the fda's decision

today relied in part on previous studies with similar versions of the booster. americans are worrying less about covid. in january, 46% of adult said they were very concerned this month it was 28%. even though thousands are hospitalized and hundred are still dying daily. >> my hope for this booster is that it's going to cover enough of the omicron variant and subvariants that it's actually going to help us see infection rates come down. >> reporter: to cases drop >> cases drop if we see enough widespread adoption, which is our challenge. >> reporter: dr. vassen is new york city's health commissioner. >> this is our chance to have quiet, calmer winter and protect ourselves against the potential wave to come >> stephanie joining me now. is there guidance for people who have recently recovered from covid? >> that's a good question. it certainly is something that people have been concerned about. in the past the cdc has said three months after being infected people should wait before they get either a vaccine or a booster.

but we may find out more when the cdc meets later this week. >> all right stephanie gosk, thank you. in mississippi, the emergency that left the city of jackson without running water is getting worse. the crisis forcing families to wait in long lines for bottled water and schools to shift to online learning. morgan chefsky is there. >> reporter: in jackson, mississippi, bottled water disappearing just as fast as people's patience. >> i've been in line maybe almost an hour >> reporter: one case per car. for a crisis hitting 180,000 people >> no water. no water pressure. no nothing >> reporter: today officials said a new water pump should help how much longer before the people here can be confident that water coming out of their faucet is clean. >> well, they can be confident that the water that is coming out of their faucet is clean when we tell them that it's clean. obviously, right now it is not >> reporter: the plant part of an older jackson water system that could cost more than a

billion dollars to fix a pricey problem experts say is already playing out nationwide as aging pipelines give out. >> a lot of it was built by our grandparents and our parents and our great grandparents all engineered to last that long you have to face reality at some point it has to be replaced >> reporter: in texas, unfiltered water looking more like coffee after officials sayr sediment broke off inside old cast iron pipes. flint, michigan, and newark, new jersey, investing hundreds of millions to replace lead pipes posing poison risks. back in jackson, lack of water cutting school short at christ united methodist >> you don't think that's what you have to worry about when you go to work or sending your kid to school is are they going to have water >> they can't use the toilets. it doesn't have enough pressure. >> reporter: no bathrooms? >> no. >> reporter: mother kelsey asking leaders to do better. >> i'm very frustrated it's very sad because the whole

community is suffering >> reporter: morgan chefsky, nbc news, jackson. in the west, a historic heat wave beginning across the region. nearly 50 million people are under heat alerts and dozens of records are expected to be shattered as we head into the labor day weekend. scorching temperatures likely stretching into next week. a u.n. team has arrived in southern ukraine to inspect that nuclear power plant in the middle of a war zone now the inspectors will have to make the treacherous journey to reach it josh letterman was with them in ukraine tonight. >> reporter: after weeks of delay, tonight u.n. nuclear inspectors are finally in zaporizhzhia on an unprecedented mission. next stop, the sprawling nuclear power plant that has become a major flash point in the war >> do you believe that russians will let you see what is really happening at the plant >> well, we are -- we are a team of very experienced people and we will have a pretty good idea of what is going on >> reporter: the team will spend several days at the plant and hopes to have a permanent presence there

are you confident you can conduct this mission safely? >> of course >> reporter: as russia and ukraine accuse each other of more shell at the plant, russia welcoming the delegation saying they must stop the iaea's nuclear extorsion. the inspectors now face a perilous journey about 30 miles down the river to the power plant in russian occupied territory where there has been constant shelling for weeks. further south, ukraine claiming successes tonight in the kherson region as part of the new counter offensive while russia insists it's been a failure. but this former marine now fighting alongside ukraine disagrees. >> i'm confident and hopeful that, you know, soon enough all of the currently occupied, you know, villages, all the way to the russian border will be liberated. >> reporter: josh letterman, nbc news, zaporizhzhia in 60 seconds, new body cam footage ohio police shooting and killing an unarmed man in his own bed. and the american nun

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ask your dermatologist about cosentyx®. we're back with body camera footage released by columbus, ohio, police showing officers shooting and killing an unarmed we're back with body camera footage released by columbus, ohio, police showing officers shooting and killing an unarmed black man in his own apartment bed. gabe gutierrez has the latest on the investigation. we must caution you, the video is graphic >> reporter: it is a split second decision that tonight is under a state investigation. we stopped the body camera video right before 20-year-old donovan lewis is shot. the encounter began around 2:15 a.m. tuesday in columbus, ohio police say officers were trying to serve a warrant to lewis for improperly handling a firearm, assault, and domestic violence >> columbus police >> reporter: officers knock and identify themselves. the police chief said eight to ten minutes go by before anyone answers.

eventually two other men come out and are detained police send a dog in then leash the dog before approaching a bedroom and opening the door police released the video just hours after the shooting >> as you're looking at this frame by frame, there appears to be something he raises his hand. >> reporter: you can see lewis' left arm on the bed, right arm coming over his body here is that moment from the body camera of the officer that fired. no guns were found at the scene. police chief says a device appearing to be a vape pen was found next to lewis. >> i grieve with our community but we're going to allow this investigation to take place. >> reporter: tonight, an attorney for lewis' family saying, we will will get justice for donovan and do everything in our power to stop these senseless killings according to columbus police, the officer who shot lewis has been with the department 30 years. he's now on administrative leave and the ohio bureau of criminal

investigation is looking into the case lester >> all right gabe, thank you. an american nun who was kidnapped in africa and held captive for months is now free and heading back to the u.s. we now have her dramatic capture and mysterious rescue. >> reporter: after nearly five months of agony and prayers for her freedom, tonight sister tenison is safe and sound and returning to the united states >> it's like this is unbelievable this is god working in all of our lives.in the northern part of the >> reporter: back in april, the 83-year-old nun was kidnapped in the northern part of the country, an area of west africa marred by violence and poverty she was ransacked in the middle of the night >> they literally took her from her bed and put her on a motorcycle and took off. >> reporter: few clues as to the

kidnapper's identities or whereabouts, the sisters thought it would be years before they saw their beloved sue ellen until this week when the fbi reached out and said she was found. >> you spoke to her. what did she tell you? >> i think her first words were, i wish i could put my arms around you and hug you and know that this is real. she did say everyone was respectful of her. she was not hurt but that it was very long. >> reporter: she's known for her compassion and helping others. tonight sister sue ellen is now taking time to heal herself. >> we truly do not know the story. we do not know how she was recovered. but we do know she's safe. and that's what's important. >> reporter: erin mclaughlin, nbc news >> amazing outcome when we come back, the new guidelines just out. what the airlines owe you the next time your flight is canceled or delayed.

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after months of outrage, the major airlines are out with new guidelines on how you'll be compensated if your flight is delayed or canceled under certain conditions they're just in time for the busiest travel weekends of the year here's blayne alexander. >> reporter: after a long summer of flight delays left millions of americans reeling from travel headaches tonight relief is on the way. american, southwest, united, delta and jetblue airlines rolling out updated policies spelling out what passengers will receive if they are

stranded meal vouchers for delays more than 3 hours if you're stuck in a city, a hotel voucher plus transportation to and from the airport. the airlines are clear this only applies for problems within their control like mechanical issues or staffing shortages. but weather delays are not covered. the policies will be laid out on a new website from the department of transportation launching tomorrow the airlines acted independently and voluntarily but with pressure from the transportation secretary who spoke exclusively to nbc's tom costello earlier this month >> we want to make sure very clearly spelled out so that passengers know what they're getting when they buy a ticket >> reporter: so what does this mean for passengers? >> it's not that no airlines were providing meal vouchers or hotel vouchers before this it's just that it was spotty it depended a lot on the agent, on the airline and going forward now, it's not going to depend on those things. >> reporter: and it all comes as

more than 12 million passengers are set to fly this holiday weekend according to hopper. that is even higher than the numbers we saw back in 2019 before the pandemic. lester >> thank you when we come back, 25 years after diana's death. how her legacy is resonating with a whole new generation. ba before the pandemic. lester? >> thank you. when we come back, 25 years after diana's death. how her legacy is resonating with a whole new generation. it was 25 years ago tonight new astepro allergy. now available without a prescription. astepro is the first and only 24-hour steroid free spray. while other allergy sprays take hours astepro starts working in 30 minutes. so you can...

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difference here's kelly cobiella. >> reporter: tonight, flowers at a paris tunnel and a london palace for princess diana. a quarter of a century after her death, diana still enthralls and inspires images of her compassion seared into our memory. her meetings with mother teresa, holding the hands of aids patients that compassion is part of the legacy that diana leaves behind. it's inspired 16-year-old olivia hancock. how much do you know about princess diana >> she was so important to people in the world. her legacy still continues as she says young people have the power to change the world. >> reporter: she was the winner of the diana award two years ago set up by prince william and prince harry to recognize young people for their social action and humanitarian work. olivia's cause -- raising thousands for teenage cancer patients and campaigning to end sexism in girls soccer

do you think people your age your peers are aware of who diana was? >> i'm sure they are she's definitely a big name. and such an inspiring woman. >> reporter: diana was the world's original influencer. using her image and style to draw the spotlight to causes she cared about. >> you can see her influence on so many modern day influences, doing exactly the same thing that diana always did. and in a way saying, look at me. look at me but then saying more importantly, listen to me. >> reporter: something we all need to do more of listen to each other, with patience and compassion. nbc news, london and that's "nightly news" for this wednesday thank you for watching, everyone i'm lester holt. please take care of yourself and each other good night

next on nbc bay area news tonight, it is the biggest heat event of the year. temperatures as high as 110 degrees. we will explain the various problems that this is causing. our flex alert has been extended. why are we told to watch our energy use in the early evening? the answer not as obvious as you might think. plus, thousands of dead fish because of this massive algae bloom. lake merit just one of the problem spots. we will show you some of the other locations. another shooting on our freeways. 9-year-old boy hit by a stray bullet. >> there were eight to 10 bullet holes in the passenger side. >> we have the latest on this investigation. a new covid-19