breaking news tonight, a second whistle-blower raising concerns about that call between the president and the leader of ukraine. his attorney, saying this one has firsthand knowledge, potentially undermining the president's repeated criticism of the first whistle-blower. >> he was secondhand and third-hand. in other words, he didn't know what was on the call. >> what his republican colleagues are saying now. the international uproar of after the wife of a u.s. diplomat is accused of striking and killing a teenager with her car and then leaving the country, claiming diplomatic immu immunity. the teen's parents plead for

justice. a key witness in that case shot and killed, the murderer still on the loose. the drone hunters, we're on the ground at the largest hot air balloon festival as police track down drones flying illegally, dangerously close. plus, she has done it again and again. simone biles nailing two in competition that have never done before. and the act going from homeless to headliner, in just days. >> announcer: this is "nbc nightly news" with kate snow. good evening. impeachment iry launched by democrats may be about to get a boost. a second whistle-blower has spoken to the inspector general of the intelligence community. his attorney saying he has more

direct knowledge than the first person did. the white house releasing a statement saying it tonight matter how many people call themselves whistle-blowers, it tonight change the fact that the president did nothing wrong. >> reporter: getting some backup. lawyers for that cia employee say they now represent, quote, multiple whistle-blowers. they tell me that but would not provide a significant number, saying it's at least two. tonight, a second witness is challenging president trump's ukraine call and the foreign help he sought to investigate the bidens. the new whistle-blower is cooperating with the intelligence community inspector general michael at kinson but is not expected to file a separate complaint. according to legal sources, this government official has firsthand knowledge that supported the first whistle-blower, who submitted

this nine-page document august 12th. firsthand knowledge is critical, because whistle-blower one was not a direct witness but claimed to be informed by more than half a dozen u.s. officials. for democrats, this new whistle-blower could aid their impeachment inquiry. >> we will want to hear from that person. >> people in the very core of all of these events are saying this can't happen. >> president trump taunted on twitter, they're going to the bench and another whistle-blower is coming in from the deep state. keep them coming. but party unity has a few splinters, three gop senators, mitt romney, ben sasse and now susan collins criticized president trump for urging china to investigate joe biden and son hunter's bid business there. the bidens deny any wrongdoing. collins is considered vulnerable for re-election in maine. >> i thought the president made a big mistake by asking china to

get involved in investigating a political opponent. it's completely inappropriate. >> kelly o'donnell reporting from the white house. democrats are hoping the new whistle-blower will add new information to an impeachment inquiry. hans nichols now on what that information could hold. >> reporter: if the whistle-blower does have a firsthand account, he or she could clarify open questions about the president's interaction with ukraine, including at the call log of trump's television phone conversation, and if any officials concluded that the president i would like you to do us a favor, though, amounted to a quid pro quo. the president -- >> the so-called whistle-blower. >> used that first whistle-blower's lack of firsthand knowledge. >> he could second-hand and third-hand. >> to try to undercut his credibility. the new whistle-blower's

information could answer questions of lawmakers that will interview four diplomats. sunlen responds i believe you are incorrect about president trump's intentions. the president has been crystal clear. no quid pro quos of any kind. adding i suggest we stop the back and forth by text. it's that text by sunlen that the president touted. arguing that the president is simply ordering an investigation into the 2016 election. >> what he wants is an accounting of what happened in 2016. >> hans is with us now. there's late new now that the president will take a late trip this week. >> heading to louisiana to help a gubernatorial candidate there.

all in republican-leaning states where we could have an indication of how strong or soft supported is the president's base. >> hans, thank you. the wife of an american diplomat accused of striking and killing a british teenager with her car. she's now left england, claiming diplomatic immunity. the teen's parents now demanding she be returned to the uk. >> reporter: tonight, charlotte charles and tim dunne want justice. >> we've been left with a family that's broken, we've got no answers, nothing to say she's remorseful. >> reporter: not only have they lost their 19-year-old son, harry, the woman driving the car that killed him may never be held to account. she's identified only as a 42-year-old american woman, the wife of a u.s. diplomat.

she recently left the country claiming diplomatic immunity. >> we're pauled, disgusted. we haven't started to grieve properly yet. nothing's at rest. >> reporter: not far from the u.s. military base, dunne was riding his motor bike. the suspect was driving on the wrong side of the same road. the two collide, killing dunne. >> you want to see justice. >> of course. >> of course. >> and what would justice mean to you? >> well, i think she needs to come back. >> british authorities asked the u.s. embassy to waive the suspect's immunity, but the embassy declined. a spokesperson told nbc that any questions regarding a waiver of the immunity with regard to our diplomats and their family members overseas in a case like this receives intense attention at senior levels, immunity is

rarely waived. >> asking president trump for them. >> if they don't give themselves up, president trump needs to do something. we've been left to just expect to sit back and accept that information and just get on with our lives. well, we can't and we're not going to. >> hard not to feel for that family. what are they doing next? >> kate, legal experts say there's very little they can do next, other than continue to speak out. meanwhile, the british foreign secretary says he's called the u.s. ambassador to say he's disappointed with the decision not to waive her immunity and urged him to reconsider. no word on if that's happening. kate? >> erin, thank you. terrifying explosions shut down a crowded octoberfest celebration in huntington beach, california. you can see and hear the blasts from last night. authorities say it was a transformer that blew up. the area was evacuated.

at least five people were injured, including two firefighters. the supreme court is back in session tomorrow for what's shaping up to be a blockbuster term. the justices hearing cases about hot button issues from immigration, to gay rights, to religious freedom. here is pete williams with a preview. >> reporter: in one of the terms most important case, the supreme court will decide what's to become of daca. [ crowd chanting ] >> reporter: the obama-era program that allows children of undocumented migrants to stay in the u.s. if they were under 16 when their parents brought them here. in covers 700,000 young people, include i including this woman who came here as a young girl with her mother. >> i have a social security number i have the ability to wo work, contribute and pay taxes. >> reporter: president trump tried to shut daca down. lower courts blocked the move. in another high-profile case, the justices will decide whether

existing law makes it illegal to fire federal employees because they're gay, lesbian or transgender. this man lost his job. >> i lost my livelihood, my income, my insurance. >> reporter: does it also apply to sexual orientation. the court will decide whether religiously affiliated schools funded with taxpayer money, gun rights on nearly a decade and whether or not to approve new restrictions on access to abortion. they might take up the battle on how the electoral college is supposed to work, which depends on how america chooses its president. >> at my age, 86, you have to take it year by year. i know i'm okay.

i was okay this last term. i expect to be okay next term. >> justice ginsburg said she intends to serve as long as she can devote full steam to the job. pete williams, nbc news, supreme court. simone biles is making history again, the olympic phenom wowed the crowd with two moves that have never been done before. and, get this, each of those new moves are going to be called the biles, which may get more confusing to future gymnasts because four different moves have that same title. anne thompson has more. >> reporter: what a way to open. >> there she goes. and there it is. she's done it! triple twisting double. >> the incomparable simone biles, flying into history in her first tumbling path, landing two moves that will bear the biles name. the first, twisting two times

while doing two flips in mid air, now officia known as the biles 2 in gymnastics competition. the next on the balance beam. >> back flip. there it is. that's the biles. >> two somersaults, two rotations bouncing off a four-inch wide platform with two moves already named for her, one on the vault at last year's world's and this on floor exercise. >> double layout with a half twist also known as the biles. >> reporter: in germany the minute the 22-year-old walked into the arena, a sense history was to be made. >> doing things that other people have never done before. >> reporter: her parents, cheering, as biles astonished everyone but herself. >> my goal going into tonight was to not be great, just to -- it wasn't to do great, it was just to do well. and i feel luke i accomplished that, made it into finals. >> reporter: an athlete who puts

history into motion. >> she did more than well. a key witness in a high-profile trial murdered. and the hunt is on for the killer. so, caught on al sleep this amazing? that's a zzzquil pure zzzs sleep. our liquid has a unique botanical blend, while an optimal melatonin level means no next-day grogginess. zzzquil pure zzzs. naturally superior sleep. have been recalled because of dangerous takata airbags. one of them could be yours.

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help stop the clock on further irreversible joint damage. talk to your rheumatologist. right here. right now. humira. spokesman: fraudsters - they're meout to get your medicare number so they can bill fake claims in your good name. don't give them that chance. fraudster: just calling to confirm your medicare number. do you have your card available? spokesman: for example, if a caller says they're from medicare, watch out. it's probably a scam. don't give out your card number. and always check your claim statements for errors. report fraudulent charges to 1-800-medicare. guard your card. learn more at medicare.gov/fraud. in texas tonight, the search is on for the person who killed joshua brown, one of the key witnesses just last week in the murder trial of former dallas police officer amber guyger. brown was shot and killed friday just miles from where his

neighbor, botham jean, was murdered last year. our morgan chesky has the report. >> we can take a moment. we're not in a rush, okay? >> yeah, we need a moment. >> reporter: in the murder trial watch bid millions, joshua brown, one of the few able to describe the moments before amber guyger shot and killed their neighbor, botham jean. >> how soon after the voices did you hear the sound of gunshots? >> right after. >> right after? >> right after. >> it was quick? >> quick. >> that scene in the courtroom make this scene friday night even more tragic and suspicious. police scouring a second dallas complex after someone shot brown multiple times and drove off. a silver sedan was reported speeding out of a parking lot. soon after in a nearby hospital, joshua brown was pronounced dead. the shooting in the apartment six miles from where brown lived last year when he heard the fatal gunshots fired by the

former dallas police officer killing botham jean. his testimy s credited in guyger's conviction. >> do you recall ever hearing someone say hey put your hands up? >> no. no, ma'am. >> or show me your hands? >> no, ma'am. >> upon hearing of his death, dallas county prosecutor wrote he bravely came forward to testify when others wouldn't. adding, if we had mor people like him, we would have a better world, as questions swirled about the motive north of boun's death, his family calling for action, tweeting today i just spoke with joshua brown's mother, she is devastated. we need answers. tonight, there are no suspects in brown's death and the investigation is ongoing, leaving a new family calling for justice in dallas. morgan chesky, nbc news. still ahead tonight how i can't believe it. what? that our new house is haunted by casper the friendly ghost?

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tonight, we note the passing of beloved entertainer rick taylor. he has been a mainstay on stage and screen for decades now, act acting in variety shows, known as the king of confetti. rip taylor was 84 years old. the film "joker," made at least $94 million since its u.s. release on friday, making it the biggest october opening of all time. and one other item for you. a texas man recovering tonight after being struck by lightning. it happened near houston. late last week, shocking individual crow shows him walking his dogs when he was

hit. good samaritans rushed over to give him cpr. he wasn't breevg but was revived. the hospital says he's in good condition and, by the way, his dogs are okay, too. hot air balloons are flying in the skies over new mexico but the threat of unauthorized drones have police tng up with a high-tech company to keep spectators safe. steve patterson report. >> fueled by propane and cheers, these giants lumber who life, filling new mexico's crystal skies for the technicolor balloon festival. what's also above is a major concern. drones. >> could cause a tear, big hole. >> a danger to the balloons and spectators below. >> we have a 1400 footer. >> on the front lines, albuquerque police officer nick pearson, hunting for drone pilots, violating the four-mile

restrictive radius around the festival. what's the biggest danger of drones at an event like this? >> if they're using it as a weapon. >> reporter: for the second year in a row, his unit has high-tech help, partnering with a company called arial. >> as drones get more popular we'll see an increase for the need of a type of service like this. >> reporter: software pinpointing the pilot's location. rogue drone pilots can face a $30,000 fine from the faa and risk criminal prosecution. recently, drones have proven their potential for disruption and terror. sightings at london's airport last year canceled flights.

arial armor started finding drones activated. >> we're going to try to get over there so we're not late. >> reporter: track the pilot minutes from the park. nick just found a drone operator who appeared to turn on his drone and quickly turned it off, apparently getting the warning. he's with him right over here. in this case, pearson said the pilot did the right thing. >> it was enough to scare me just seeing it, then rolling in two cruisers. >> high-tech deterrent for an increasingly high-tech problem, allowing police to take a very human approach to enforcement. steve patterson, nbc news, albuquerque, new mexico. up next, a star is born. ♪ >> from subway singer to social media wayfair's got your perfect mattress. whether you're looking for a top-brand at a great price.

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there's good news tonight about the power of song, after a homeless woman with the voice of an angel was discovered singing in an l.a. subway. singing on stage last night. ♪ captivating a crowd of hundreds at a festival in southern california. just two weeks ago, her life was dramatically different. she was homeless and singing in an l.a. subway stop. her voice so enchanting, it stopped an lapd officer in his

tracks. he recorded the 52-year-old and posted it to the lapd's twitter account. the video immediately went viral. >> i feel so good, overwhelmed by people's comments. putting me on a pedestal, which i feel like i don't deserve. >> the tweet has been viewed over a million times. her singing capturing the attention of people all over the world, including broadway star kri kristin chenoweth. >> i want to send her money. you better continue on, because you've got it, girl. >> i'm so touched that i'm speechless. i can't even put the words together. >> she was classically trained as a violinist during her childhood in russia, moved to the u.s. in her 20s. after a series of debilitating illnesses found herself playing on the streets to survive. her beloved instrument was stolen. she turned to what's left, her

voice. she said she learned to sing opera from watching television. now at least one recording contract has been offered. another musician said they would like to buy her a new violin. two crowd funding pages raised over $200,000. >> it is fulfilling my dream. my whole entire life has changed now. >> the subway soprano plans on getting a permanent roof over her head and giving back to others. >> very grateful. it's a wonderful feeling to be loved by people, to be accepted like that. >> the power of a chance meeting and a life changed forever. that is "nbc nightly news" on this sunday night. i'm kate snow. lester holt will be with you tomorrow. for all of us at nbc news, have for all of us at nbc news, have a great night. welcome to the carnival 30 minute tour.

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