the prosecution rests. chauvin's attorney showing body cam of george floyd's previous arrest. and the friend in floyd's suv speaking publicly for the first time president biden set to announce the full withdrawal of u.s. troops from afghanistan. why the deadline he chose is so symbolic and the officer honored in the capitol he died protecting the powerful ceremony and the moment between the president and the fallen hero's 7-year-old daughter. >> announcer: this is "nbc nightly news" with lester holt good evening, everyone the race to vaccinate americans against covid-19 hit a gut-check moment today, one concerning enough to cause federal health authorities to call for a pause in using shots made by johnson & johnson. that's because six women who have received the single-dose shot later developed blood clots. one woman died the fda wants a pause now to investigate any potential links to the shots.

here's what we know. the cases are extremely rare 6 out of nearly 7 million j&j vaccinations given white house officials say they have ordered enough of the other two vaccines to keep up the current pace of vaccinations tonight more than 122 million americans have received at least one dose of covid vaccines in a few minutes, my conversation with dr. fauci about the news and what you should know. but first late details from miguel almaguer. >> reporter: after today's stunning announcement, states began canceling johnson & johnson vaccination appointments the fda and cdc calling for a pause in the use of the single-dose shot out of an abundance of caution. authorities say six women out of the nearly 7 million people who have received the vaccine developed rare and severe blood clotting. one died another is in critical condition.

nbc news speaking exclusively to a 29-year-old hospitalized in nashville. >> i went to the e.r. a week after the -- a week after the shot when i was having fever, and they didn't find anything strange in my blood work so went home and just continued to kind of worsen over the following week when i went back to the e.r., it's because my leg was so swollen that i couldn't really walk so at that time they found the dvts or the clots in my legs. >> reporter: doctors now believe an immune response likely led to the clotting some of the women had no pre-existing conditions they were all between the ages of 18 to 48, experiencing symptoms like severe headaches, abdominal or leg pain, and shortness of breath within two weeks of vaccination the pause of j&j shots dramatic but also likely temporary >> that's what the fda was signaling, saying even though these are rare, even though you could justify not pausing, they were going to take the extraordinary step just to offer that extra level of assurance.

>> reporter: with authorities meeting tomorrow to figure out next steps, johnson & johnson says in part, at present, no clear causal relationship has been established between these rare events and the janssen covid-19 vaccine authorities say for the millions already inoculated with johnson & johnson, there's no reason to be overly concerned. for those scheduled to get it, they'll likely get pfizer or moderna instead. and while the white house says the pause will not have a significant effect on the national vaccine rollout, the impact on vaccine hesitancy is unclear. >> i really hope people continue to get vaccinated and this doesn't cause more skepticism >> reporter: tonight, pause for one vaccine maker as authorities hope the setback doesn't erode public confidence miguel almaguer, nbc news dr. anthony fauci is acknowledging this news has the potential to shake vaccine confidence but says transparency is important. we spoke earlier this afternoon.

was a pause necessary in your view >> yes, i believe it was necessary for a couple of reasons. one, to investigate these a bit more to make sure we get much more of the details and the granular details of that. but also it's important during this period of pause to alert physicians on the outside who might see women or men, but mostly women as we've seen all six of these women, who might come in with a clotting disorder like this. >> dr. fauci, we were told these vaccines had been thoroughly tested, there were no shortcuts, that they were safe. if there is, in fact, a connection between blood clots and the j&j vaccine, why wouldn't it have been discovered during the trials >> it's a matter of numbers, lester. for example, if you look in the clinical trial, generally clinical trials have anywhere from 30,000 to 40,000 people in it you're talking about an adverse event that has occurred in 6 people out of

6.85 million people who were vaccinated in the united states with the j&j. when you get out into the real world, you're giving it to tens and tens of millions of people, and it is at that point that you see if there is a rare adverse event. you will pick it up as you get into the millions of people who are vaccinated >> what would you recommend to anyone who has had the j&j vaccine in the last couple of weeks? is there anything they can do >> well, right now i would make sure they understand that this is really a very rare event. and, in fact, it had occurred in people in a very small bracket of time frame, between 6 and 13 days. so if you had received a vaccine a couple of months ago, then i think you would have absolutely nothing to worry about. i would be very surprised if there was any issue there. if you had received it within a period of, let's say, two or three weeks or a week or two, i would tell

them, a, again, it's a very rare event. but you should be alert to see if you get symptoms of a severe headache or some issue with movement, stroke-like syndromes, that that would bring you to the doctor make sure you tell them that you've been vaccinated >> dr. fauci says they have not seen this particular issue with either the moderna or pfizer vaccines. let's turn now to the tense situation in minnesota we've been following where the police officer who shot and killed 20-year-old daunte wright following a traffic stop resigned today along with the chief of police. ron allen is there >> reporter: tonight the officer who fired the fatal shot and the city's police chief both resigned amid growing outrage over the death of daunte wright kim potter, with 26 years on the force, saying it was in the best interests of the community for her to resign immediately >> i'm hoping that this will help bring some calm to the

community. >> reporter: prosecutors say they're likely to decide whether to file criminal charges as soon as tomorrow it follows a second night of confrontation. hundreds of protesters face to face with police outside their fortified headquarters. >> we need the police to stand down. >> reporter: as many as 40 arrests, most for violating curfew stores in the nearby strip mall looted. eventually police using tear gas and rubber bullets to clear the area after they say coming under attack >> say his name. >> daunte wright. >> reporter: for daunte wright's family, another day of grief, in solidarity with relatives of george floyd >> i never imagined this is what was going to happen. i just thought maybe he was being arrested. >> reporter: wright's family demanding justice, rejecting the police statement calling the incident an accident, with the officer mistakenly using her firearm instead of a taser >> i just shot him. >> reporter: police have not revealed the exact weapons the officer carried, but law enforcement experts say guns and

tasers typically used look and feel very different. the family's attorney says there was no reason to use a weapon wright was stopped for an expired vehicle tag, and officers discovered he had an outstanding misdemeanor warrant. >> they could have given him a ticket but when it's black people, they do the most excessive use of force. >> reporter: chyna whitaker and wright have a son together. daunte is almost 2 she says he had a doting father. how do you feel about what happened? >> i'm really just hurt for my son, really because like they took his dad from him. especially being a black young son, he needs his dad. >> and what are things looking like as nightfall approaches, ron? >> reporter: lester, police and the national guard have brought in reinforcements they're ready. protesters are gathering not far from here and there's a curfew in effect again tonight. lester >> ron allen, thank you. in just 60 seconds, the defense begins its case on why derek chauvin should be acquitted in the death of george floyd.

with that police shooting just miles away in minneapolis, the defense began its case today at the murder trial of former police officer derek chauvin in the death of george floyd. gabe gutierrez is there tonight. >> reporter: after 38 witnesses and 11 days of testimony, today the murder trial of derek chauvin entered a new phase. >> your honor, the state of minnesota rests. >> reporter: with the prosecution wrapping up, the defense took center stage, arguing that george floyd died from drugs and pre-existing health conditions, not chauvin's knee on his neck. >> put your hands on the dash. >> reporter: the first witness, a retired minneapolis officer who arrested floyd during a previous incident in 2019 as shown in this body camera video. >> the passenger was unresponsive and non-compliant to my commands. >> reporter: but under cross-examination, he acknowledged floyd eventually did comply. a paramedic then testified floyd told her he'd taken multiple opioid pills that day >> i asked him why

he said it's because he was addicted. >> reporter: the defense then shifted to the night of floyd's death in 2020. speaking publicly for the first time, shawanda hill, the woman in floyd's suv, told the jury he was asleep when the officers approached the vehicle. >> i was like, baby, that's the police. open the door, roll down the window, whatever they told him to do. so he looked back and when he seen the man, the man had the gun at the window when we looked back to him so he instantly grabbed the wheel, and he was like, please, please, don't kill me. please, please, don't shoot me don't shoot me >> reporter: also taking the stand, a minneapolis park police officer who detained hill while other officers restrained floyd the defense played video from his body camera and he testified about the crowd of bystanders. >> very aggressive aggressive towards the officers, yes. >> reporter: then the defense called its own use of force expert. >> i felt that derek chauvin was justified, was acting with objective reasonableness. >> reporter: the prosecution pushed back

>> in this moment, was this crowd a threatening crowd? >> no. >> the defense doesn't have to have a great case the prosecution does because the prosecution needs a unanimous verdict to convict, but the defense only needs one stubborn juror to lead to a hung jury. >> reporter: outside the courthouse, floyd's family stood shoulder to shoulder with the family of daunte wright. >> police officers are killing us, and we are being murdered at a rate that i never thought i could imagine. >> reporter: it is not clear exactly how many witnesses the defense will call, but the judge has told the jury that he expects closing arguments on monday, lester. >> all right gabe gutierrez tonight, thank you. it's america's longest war, and tonight it appears u.s. troops are about to head home from afghanistan, but not by the may 1st deadline that former president trump had set. instead, president biden is set to announce he'll keep u.s. troops there until september 11th andrea mitchell has more >> reporter: after 20 years, costing 2,400 american lives,

officials say the withdrawal will start almost immediately so president biden can focus on today's threats. but he won't get out by former president trump's may 1st deadline, which mr. biden has acknowledged. >> it's going to be hard to meet the may 1 deadline just in terms of tactical reasons, hard to get those troops out. >> reporter: the u.s. has 2,500 troops in afghanistan plus about 7,000 nato forces who would also leave defense secretary austin and secretary of state blinken in europe today briefing allies. >> we know that the taliban will attempt to come back into power, and i hope that we have put some checks and balances in place with the taliban, with the afghan government, to ensure that that doesn't happen. >> reporter: congressional reaction is mixed because the u.s. will be leaving without a taliban peace deal or guarantees to protect the rights of women. but a senior official says the president believes waiting for that is a recipe for staying in afghanistan forever.

lester. >> andrea mitchell tonight, thanks. this evening we want to look at what's driving the record migrant surge we've been watching at the southern border that's left nearly 22,000 children in u.s. custody, a number that keeps soaring. nbc's ayman mohyeldin reports from guatemala tonight. >> reporter: if abject poverty had an address, this village would be it. with her baby in one arm, this woman is about to make the family's one meal for the day without any running water or electricity. what do you feed the baby powdered milk or a soup, she tells me her 7-month-old son is almost half the weight he should be for a baby his age 50% of guatemala's children under 5 are malnourished it is dire economic conditions like these that tonight are fueling guatemala's migration exodus nicolosa says she's thought about going to the u.s. but is staying to take care of her in-laws but 21-year-old samuel told us he's lost hope of a future here,

saying he's working to raise $12,000 to pay traffickers to smuggle him across the border into the u.s. after hearing president biden would allow him to stay. the president would give you 100 days of a free pass window, he told me. but while the biden administration is allowing unaccompanied children and now many families to stay in the u.s., others including adults like samuel are not allowed in guatemala's president told me biden's humane messaging towards migrants early on was confusing. >> reporter: this president wants to build a wall of prosperity, jobs, education, health care but that can't be done without american help,

and the fear corrupt officials siphoning off funds before they get to the people who need it here the most. lester. >> ayman mohyeldin in guatemala tonight, thank you. it's been nearly 100 days since the capitol riot and more than 400 people are charged. but a big question is yet to be answered whose idea was it? pete williams with more on our nbc news cross platform series, american extremism >> reporter: the fbi says its massive investigation has uncovered contacts late last year among people who became some of the first to break through the police barricades and smash their way into the capitol. but whose plan was it? 12 people from six states are charged with being part of an oath keepers conspiracy to derail the electoral vote count. but court documents say by late december, their talk was about demonstrating in the streets. but on january 1st, one of them sent a message saying he'd like to know what the plan is and that they seemed caught off guard by the crowd storming the capitol still the government says seven of them lined up military-style to

force their way in all 12 have pleaded not guilty separately, four men have been accused of being part of a proud boys conspiracy to stop the vote count, joining with eight others accused of coming to washington ready for a fight of some kind. investigators say one of them, joseph biggs of florida, messaged "we have a plan" the right before the riot. but court documents don't say what that plan was prosecutors say biggs led the proud boys on january 6th from the washington monument to the capitol where one of their followers is accused of breaking a capitol window, allowing hundreds more to stream in they pleaded not guilty too sheamus hughes, a terrorism expert at george washington university, says it might have been nobody's plan in advance. >> it's possible this is basically a seize the moment situation, right? you had an opportunity where these guys were primed to go a few days before. they saw an opportunity and took it with the crowd. >> reporter: some social media posts before the 6th urged people to storm the capitol, but it's still not clear who had actual plans to do it

pete williams, nbc news, washington. up next for us tonight, how to beat the rising cost of groceries.

well, maybe you've noticed lately grocery prices are soaring stephanie ruhle now with some ways to save >> reporter: you can't miss it. >> cheese and stuff like we try to stay away because the prices have gone up. >> reporter: sticker shock in the supermarket aisle. john camerage says his grocery bill has nearly doubled are you buying less fresh food, less produce, less meat because of the prices? >> it's more produce than meat to us because meat is very

expensive. >> reporter: compared to a year ago, many staples will cost more a dozen eggs and a pound of ground chuck both up 7% a loaf of bread up 11%. >> i would expect we're going to see prices continue to rise over the next 6 to 18 months. >> reporter: experts say that's because of the supply coupled with the increased cost of getting products onto shelves. factors include rising gas prices, driver shortages, fewer workers in meatpacking plants and bakeries, and bad winter weather that damaged crops even with prices going up, there are ways to save >> managing what's in your home and what you're bringing in in terms of storing it will really go a long way to save money. >> reporter: that means buying food in bulk when possible, using apps like flip and basket to track prices and the best deals, and keeping your eyes open for store brands smart shopping that could mean more savings. stephanie ruhle, nbc news up next for us here tonight, a powerful tribute to a fallen hero.

finally tonight, the moving tribute at the u.s. capitol today. president biden among those honoring a fallen police officer. somber silence as the

body of officer william evans laid in a place of honor at the capitol, a building he protected faithfully for 18 years. the u.s. capitol police officer was killed in the line of duty during an attack on april 2nd, leaving behind his grieving mother. >> he was defined by his dignity, his decency, his loyalty and his courage. >> reporter: and two young children 9-year-old logan, wearing his father's service hat, got a personal gift from the president of the united states, a challenge coin ♪ his daughter abigail, only 7 years old, wiping tears from her mother's face. but also creating a moment of levity when someone special rescued one of her toys from the ground >> a greater compliment does no one have than the president of the united states looking after your toys. >> reporter: remembered as a familiar smiling face to those who worked with him, now

recognized by all as a hero >> your son, your husband, your brother, your dad was a hero, and it's part of you it's in your blood >> officer evans will be honored at a private funeral thursday in massachusetts. that's "nightly news" for this tuesday thank you for watching, everyone i'm lester holt. please take care of yourself and each other. ♪♪ gaslighter denier ♪ ♪ doin' anything to get your ass farther ♪ ♪ gaslighter big timer ♪ ♪ repeating all of the mistakes of your father ♪ ♪ we moved to california and we

followed your dreams ♪ ♪ i believed in the promises you made to me ♪ ♪ swore that night 'til death do us part ♪ ♪ but you lie-lie-lie-lie-lied ♪ ♪ hollywood welcomed you with open doors ♪ ♪ no matter what they gave you you still wanted more ♪ ♪ acting all above it when our friends divorced ♪ ♪ what a lie-lie-lie-lie-lie ♪ ♪ you're such a ♪ ♪ gaslighter denier ♪ ♪ doin' anything to get your ass farther ♪ ♪ gaslighter big timer ♪ ♪ repeating all of the mistakes of your father ♪ ♪ gaslighter you broke me ♪ ♪ you're sorry but where's my apology ♪ ♪ gaslighter you liar ♪ ♪ gaslighting ♪ ♪ you're a li-li-li-liar ♪

♪ oh honey that's you ♪ ♪ gaslighting ♪ ♪ you made your bed and then your bed caught fire ♪ ♪ gaslighter you broke me ♪ ♪ you're sorry but where's my apology ♪ ♪ gaslighter you liar ♪♪ [cheers and applause] >> kelly: all right, everybody! welcome to "the kelly clarkson show"! give it up for my band y'all! yes, jaco! that is "gaslighter" by the chicks. britney and her house gets requested that. what is your connection to the song? >> thank you so much for having me, kelly. i did not one, but if you gaslighted hers and it's not fun. this one goes out to one of my