this is "nightline." >> tonight, mob mentality. putting names to the faces of the capitol insurrection. >> we're talking about law enforcement or ex-law enforcement. we're talking about military or ex-military. we're talking about people who are actually elected officials. >> arrested for the violent riot and terror. >> i thought i was going to divided republican party denouncing the extremists in its own ranks. plus roots of the riot. how unlikely rioters got radicalized. the pink hat lady winding up on an fbi wanted poster. and the olympic gold medalist caught up in the siege with friends and loved ones reaching out. >> i think when something like this happens to somebody that you care about, you ask

yourself, what could i have yourself, what could i have done? when you have diabetes, managing your blood sugar is crucial. try boost glucose control. the patented blend is clinically shown to help manage blood sugar levels. boost glucose control products contain high quality protein and key nutrients to support immune health. when heartburn takes you by surprise. fight back fast, with new tums naturals. free from artificial flavors and dyes.

thanks for joining us. as shock waves from the capitol hill attack threaten to tear apart the republican party, the fbi cracking down on insurrectionists.

among the growing list of mugshots, former soldiers and ordinary civilians whose role in the riots have left loved ones reeling. 27 dayago,t the symbol of v pling out for thworld usa, usa, usa! >> reporter: now nearly a month after the deadly insurrection, a clearer picture of those who were part of the mob and where they came from. >> law enforcement or ex-law enforcement, military or ex-military, people who were actually elected officials. >> reporter: the fbi has identified approximately 400 suspects in the breach of the capitol and arrested nearly 150 individuals to date. according to an npr analysis, of those charged, nearly 1 in 5 reportedly had a military background. among them, ryan nichols, seen here at the riot.

the former marine once made national headlin rcuin dogs t ilorence battered the state in 2018. >> two volunteers would get them out, opening the gate. those dogs rescued. >> reporter: federal prosecutors say nichols and his friend, alex harkrider, stormed the capitol on january 6th. according to the fbi, nichols can be seen on video yelling, if you have a weapon, you need to get your weapon. and also, this is the second revolution right here, folks, this is not a peaceful protest. both men are under arrest and in jail. among the charges, conspiracy, unlawful entry, and assaulting a federal officer. larry randle brock jr. is also a veteran. the former air force officer seen here on the senate floor in a military-style helmet and tactical vest, holding plastic zip tie handcuffs. brock is charged with entering a restricted area and disorderly conduct. he was released to home confinement pending trial. >> we have a number of people

that have military background, ex-military veterans. we see some people who are actively involved in right-wing groups, militia groups, groups like the oath keepers and the proud boys and the three percentersing. >> according to department of justice, the oath keepers actively recruit current and former military members. last week a grand jury indicted three rioters affiliated with the oath keepers, charging them with conspiracy, destruction of government property, and entering a restricted building or grounds. >> i think the message department of justice is sending, no matter who you are, your local affiliation, or where you are, if evidence that a crime occurred, they're going to prosecute you, and they're bringing on the full force of the doj. arrested, reelected officials. what we've enince jay 6th that's reallyg is peoplerged w have taken an oath totect and serve the public.

>> it's a great day for america! >> reporter: corey griffin, elected county commissioner from new mexico who's also the founder of a group called cowboys for trump. in this video, apparently posted to the group's now-shuttered facebook page, griffin leading a group in prayer on the steps of the capitol. and this video posted the next day appears to be stoking flames further. >> i want to say that that was a -- you want to say that was a mob, a violence? we could have a second amendment rally, then it's going to be a sad day because there's going to be blood running out of that building. but at the end of the day, you mark mywo, w uck schumer. >> the events of january 6th were disturbing, i think, to a lot of americans, as well as us here. >> reporter: paul sanchez, new mexico republican heading up a committee to oust griffin from office, an ongoing effort, citing multiple incendiary

comments during griffin's time in office. >> we have already known there have been issues with commissioner griffin, so unfortunately, that seemed like an extension of proon time. if we hear our name being in the news, we want it for good things. with commissioner griffin up there and specifically stating that, you know, he's an otero county commissioner in some of those videos, that puts us in very concerning light. it gave us concern as to what he was doing in that situation. >> reporter: griffin has been charged with a misdemeanor for entering a restricted area. he has not entered a plea and has been denied bond by a judge. >> anything to get our country back! >> reporter: griffin's lawyer argued he is not a crazy person, but he made unfortunate statements. as the investigation continues, the trauma among some members of congress still coming to light. on instagram monday, representative alexandria ocasio-cortez revealing that fearing for her life is

triggered a harrowing response. >> i'm a survivor of sexual assault. and i haven't told many people that in my life. but -- when we go through trauma, trauma compounds on each other. >> reporter: president trump is charged with inciting the insurrection. these videos of his january 6th rally, introduced today as evidence in the senate impeachment trial. >> storm the capitol! >> invade the capitol building! >> reporter: even as he faces the senate trial next week, some in the gop rallying behind the former president. house minority leader kevin mccarthy traveled to mar-a-lago, posing for a photo. few republicans in the house have forcefully denounced the extremist views of georgia representative marjorie taylor greene. even after senate minority leader mitch mcconnell issued a blistering statement saying, looney lies and conspiracy theories are cancer for the republican party and our

country. it's the conspiracy theories, say some who took part in the attack that drew them into the chaos at the capitol. klete keller has done it so far! >> reporter: klete keller, three-time olympic swimmer, won two gold medals in the and olympic games, swimming with michael phelps as part of the legendary usa relay team. a towering figure at 6'6", he wore his olympic jacket inside the capitol rotunda. >> i was shocked. i really couldn't believe it. not only would he do that, but that he would wear his olympic jacket. but of course, those of us that are olympians, we recognized it right away. and he's tall and a pretty good looking guy, and we recognized him even with his beard. i think everybody was really surprised. >> reporter: mark schubert recruited keller to swim for the university of southern california and coached him throughout his olympic career. but following gold medal glory, keller told the olympic channel podcast he struggled to adjust

to life after swimming. >> i found the real-world pressure much more intimidating and much more difficult to deal with. >> reporter: he became homeless and lived for a time in his car. >> i think my first thought was, knowing that he has struggled, trying to get a profession, trying to be a successful family man, having suffered from depression and anxiety, you know, all of those things came to mind. and just made me feel very sad. >> oh, that is such a profound statement. when you spoke to klete after the riot, what did you guys say to each other? >> he was very sad, apologized profusely over and over again, like he was apologizing to me for what he had done. and i said, look, klete, you did a bad thing. you're a good person, and you

know, i'm here to support you as you know your teammates at usc will be here to support you. >> reporter: keller charged with violent entry and disorderly conduct on capitol grounds, obstructing law enforcement, entering a restrictedh keller, is known as a strong trump supporter, somehow lost his way. >> all i can do is say, if there were a lot of people there who were like klete, i think they didn't know what they were getting into and got caught up in a very terrible thing. i know klete feels that way, i know he feels a lot of regret as to what the situation became. >> you sound wistful, almost emotional about what you're saying, like you harbor a little bit of regret or guilt. >> i think when something like this happens to somebody that you care about and that you've been close to, coach/athlete,

you ask yourself, what could i have done? of course, hindsight's always 20/20. but i think those things that i just mentioned, i could have done better. and i'll learn from it, and i'll do better with my athletes in the future. up next, how rioters became radicalized. distinguishing the firebrands from the fanatics among the group that stormed the capitol. ♪ pepto bismol coats and soothes your stomach for fast relief and get the same fast relief in a delightful chew with pepto bismol chews. loves me. loves me not. new neutrogena® skin balancing! 3 made-for-you formulas with 2% pha exliate and condition find the one. neutrogena®

want to save hundreds on your wireless bill? with xfinity mobile you can. how about saving hundreds on the new samsung galaxy s21 ultra 5g? network. sure thing!l one and with fast nationwide 5g included at no extra cost. we've got you covered. so join the carrier rated #1 in customer satisfaction. and get a new samsung galaxy starting at $17 a month. learn more at xfinitymobile.com or visit your local xfinity store today.

♪ tonight we've been taking a deep dive into those who took

part in the capitol siege. and it's not just people affiliated with militarized extremist groups. among the hundreds who were there, this woman, a mom of eight, dubbed pink hat lady. she wound up on an fbi wanted poster. earlier tonight i spoke with he yorker" who interviewed her and elizabeth newman, former department of homeland security official in the trump administration, now director of the republican accountability project. thank you both for joining us. >> good to be here. >> ronan, you wrote about that mother of eight who we should note has not been charged with a crime, but she described to you her journey. how would you say she went from suburbia to siege? >> we've seen in this crowd, juju, at this riot, a great number of people who had some kind of formal training, possibly military or law enforcement background arrived as part of an organized group. i've reported on several individuals who seemed to be a

part of an organized push towards this insurrection. this woman is someone who appears to have come from a completely different kind of background, someone who through friends, through her facebook page, became radicalized, found extremism. she went, if you look at her social media posts, from posting about yoga and her kids' sports games and issues in her community, to being obsessed, it seems, with conspiracies, with far-right views, including, ultimately, doubts about the outcome of the election based on unsubstantiated misinformation. >> ronan, did she seem remorseful to you and are her eight children standing by her in this? >> you know, some of her children are underage. i have not talked to her adult children. i did speak to her mother, who said that she and many of the other family members in this family are not standing by this woman's conduct on the hill. and, you know, that is a

sentiment that i've seen in a number of the family members of insurrectionists that i've interviewed. these are not all individuals who come from a background of extremism. these are individuals who come from all sorts of backgrounds, many of whose family members deplore this kind of violence. >> elizabeth, earlier we met klete keller's swim coach, who said he reached out to the former olympian with compassion and witched he could have done more to hem him along the way. >> experts that do interventions and help people off-ramp, that's what we often call it, they encourage empathy. they encourage approaching with love and acceptance. there is a time and place for addressing the wrongs that have been committed. nobody would suggest that you don't -- that individuals don't need to be held accountable for their actions. but coming at them with an argument as to why their ideology is wrong or being angry at them for their actions

usually isn't the best way to try to break through. often what people that have escaped extremism tell you, it's when somebody performed an act of love, expressed some sort of gentleness in their life, that broke the ice and helped them start on the journey to help. >> which is exactly what we see the coach doing. ronan, you've reported on others who were there at the siege, including a former marine and an air force combat veteran, i think. we pointed out earlier that roughly 20% of those charged have military backgrounds. is there a common thread, in your mind, about how these people become vulnerable? >> you know, i talked to a lot of the friends of, for instance that air force veteran, larry brock, who said in his particular experience of his military service, he was surrounded by a lot of individuals who did espouse varying degrees of far-right views, that that was an echo chamber that accelerated a push towards extremism in him.

but i think the common denominator here, juju, is that there has been an aggressive effort by multiple parties -- foreign actors, individuals in government -- to push extremist ideology on individuals who might be vulnerable to it. and clearly that has found purchase with a whole lot of kinds of people. >> elizabeth, your group is called the republican accountability project. why is holding some in the republican party accountable an important step in counteracting this kind of misinformation? >> at this point, we believe there are about 57 million trump voters that still believe the election was stolen. if you believe that the government has failed in its duties to you as a citizen, then it's not illogical to come to the conclusion that revolution might be necessary and that violence is justified, after all, that's kind of how our country was formed. so it's really important to reduce that number of 57 million. not all of them are going to be prone or vulnerable to violence, but just as ronan mentioned,

there are threat actors actively trying to recruit. neo-nazis are posting guidance online of how to recruit a disheartened trump supporter into their groups. so we quickly need to dispel the myth that the election was stolen. the best way to do that is to get elected officials to tell the truth. and that's what the republican accountability project's about. we're going to encourage people to have character and courage and tell the truth. and if they choose not to, we will hold them accountable in their elections. >> so much to unpack. ronan farrow, elizabeth newman, thanks to you both and always good to see you. >> thanks, juju. >> thanks for having usupen off. ♪ ♪ ♪ start your day with secret. secret stops sweat 3x more than ordinary antiperspirants. ♪

the new provitamin b5 formula is gentle on skin. with secret, outlast anything! no sweat. secret i'm morgan, and there's more to me than hiv. more love,... more adventure,... more community. but with my hiv treatment,... there's not more medicines in my pill. i talked to my doctor... and switched to... fewer medicines with dovato. prescription dovato is for some adults who are starting hiv-1 treatment or replacing their current hiv-1 regimen. with... just 2 medicines... in 1 pill,... dovato is as effective as a 3-drug regimen... to help you reach and stay undetectable. research shows people who take hiv treatment as prescribed... and get to and stay undetectable... can no longer transmit hiv through sex. ta dovo and get to and stay undetectable... can no longer transmit if ye allergicex. to treat while taking dovato. r do not stop dovato without talking to your doctor,... as your hepatitis b may worsen or become life-threatening. serious or life-threatening side effects can occur, including...

allergic reactions, lactic acid buildup, and liver problems. if you have a rash and other symptoms of an allergic reaction,... stop taking dovato and get medical help right away. ininhetitis b .. or if you are, may be, or plan to be pregnant. your doctor may prescribe a different medicine... than dovato if you plan to be pregnant or if pregnancy is confirmed during the first trimester. dovato may harm your unborn baby. use effective birth control... while taking dovato. most common side effects are headache, nausea,... diarrhea, trouble sleeping, tiredness, and anxiety. so much goes... into who i am. hiv medicine is one part of it. ask your doctor about dovato—i did.

businesses today are looking to tomorrow. adapting. innovating. hiv medicine is one part of it. setting the course. but new ways of working demand a new type of network. one that's more than just fast. you need flexibility— to work from anywhere and manage from everywhere. advanced technology. with serious security. and reliable coverage, nationwide. forward-thinking enterprises deserve forward-thinking solutions. and that's what we deliver. sooustusins. forward-thinking solutions.

♪ finally tonight, the commander in chief honoring a fallen defender of the u.s. capitol. president biden and the first lady at the capitol tonight, paying respects to fallen u.s. his remains lying in honor in that famous rotunda. he died there after responding n

the very same building. it's an honor usually reserved for leaders of the u.s. government. tonight, the commander in chief laying his hand on his heart, a somber moment to honor the officer who gave his life for his country. and that's "nightline" for tonight. we'll see you right back here at the same time tomorrow. thanks for staying up with us. good night, america.

>> you will