>> forever. >> forever. >> good nightment. on our broadcast tonight, ambushed, that awful rampage in las vegas where two police officers were executed. tonight a chilling turn in the investigation and what the alleged gunman told nbc news in an interview just weeks ago. the lockdown in los angeles today after a wild chase, a bizarre scene playing out for hours on live television. one on one, hillary clinton sits down with cynthia mcfadden and opens up about the one thing she says she would like to do over, if she could. brotherly love, an amazing act of love from a teenager to his 7-year-old brother. we're with them for a journey that's inspiring so many across our country. "nightly news" begins now. >> from nbc news world headquarters in new york, this s

"nbc nightly news" with brian williams. good evening. police in las vegas today described it in the most chilling term, the flatout execution of two police officers who were seated in a pizza restaurant during their lunch break. their two accused assassins, a young married couple, now dead, had grown so suspicious of law enforcement and government that these two police officers represented all they were against. it turns out nbc news interviewed the accused leader, the husband and gunman in this case earlier this spring when he turned up at the stand off between the federal government at a ranch in arizona. it's where we begin tonight. mike taibbi is in los angeles. >> reporter: for the las vegas metropolitan police department, an agonizing salute to two fallen comrades and the daunting task of figuring out why this

young couple, jar rel anded and miller turned from conspiracy spurs into killers. they were not part of a conspiracy or broader group. >> we believe they are connected to a certain ideology that is anti-police and anti-government but as of right now, we have not been able to find any additional links or suspects. >> reporter: but there were plenty of hints something awful was brewing. jared miller had briefly joined the armed anti-government protesters supporting cliven bundy in april and spoke then exclusively to nbc news. >> i feel sorry for any federal agents that want to come in here and try to push us around or anything like that. i really don't want violence towards them, but if they are going to come bring violence to us, well, if that's the language they want to speak, we'll learn it. >> reporter: both millers, fans of performance art, posted often on social media about the dawn

of a new day when all hell will break loose and they will be standing in the middle of it. >> we have two officers down. >> reporter: at 11:22 sunday morning it began. the two suspects walking into a pizza restaurant and gunning down officers alyn beck and igor soldo. . >> they placed a gadsden flag, don't tread on me yellow flag on officer beck and threw a swastika on his body. >> reporter: they went to walmart and shot down a civilian joe wilcox before committing a suicide pact. they talked about guns and killing cops but thought it was hot air. >> believe me, if i had known they would actually done something like this, i would call metro. >> i can't believe she went ahead and shot her husband twice and shot herself. >> reporter: the suspects have left behind a manifesto on the internet blasting the government. one telling sentence, to stop this oppression i fear can only be accomplished with bloodshed,

their blood but the lives of three innocence innocents firin. three innocence innocents firin. rancher cliven bundy told a local reporter, he doesn't know the millers and didn't meet jared miller when he came to the ranch back in april and what the millers did had nothing to do with this continuing stand off with the government. mike taibbi there for us tonight. mike, thanks. now to a dramatic standoff playing out for much of the day on live television. a wild car chase through southern california, then a man armed with an assault weapon loose in a neighborhood at one point on a rooftop as schools in the area went on lockdown as authorities tried to surround him. our los angeles based miguel in north hollywood for us tonight, miguel, good evening. >> reporter: this is cordened off as police sweep across the area. this hour-long stand off just ended moments ago with the suspect surrendering.

it began with a wild chase, but police now have their man. in a city known for dramatic high-speed pursuits, this was a shocking sight. a man pulling over then pulling out a high powered assault rifle. >> out of the car on foot with an m-4. >> reporter: running through a residential neighborhood, wielding his weapon, the suspect jumps from roof top to roof top, the dam ma unfolded on live television. >> we're in a game of wait and see. >> reporter: wall-to-wall coverage of the pursuit, the suspect then barricaded inside a home. >> this is one of the most dangerous times for our officers to respond, particularly when you know this suspect is armed with a weapon, an assault weapon. >> reporter: entire neighborhoods were evacuated and schools placed on lockdown until students could be lead to safety. >> our doors are locked and windows are locked. shades are drawn and all the children are being kept inside to keep them safe. >> reporter: it started at 10:15 this morning. >> not a safe move. very dangerous.

>> reporter: the pursuit topped speeds of 100 miles an hour. >> look how fast this guy is going. >> reporter: the suspect zigzagged across four major freeways, flying down neighborhood streets for more than an hour. >> he is on the ground there. >> reporter: after a four-hour stand off, the suspect who said he didn't want to go back to il, finally surrendered to police. the suspect will face several felonies. police say he has several felonies. the end to a wild day here that even veteran police officers say they have never seen anything like. brian? >> miguel, thanks. tracy morgan, a long-time member of the family here at nbc as the cast member for years on both "snl" and 30 rock" remains in critical condition at a hospital in new jersey after a highway crash that killed one of his closest friends and badly injured two others. the truck driver who turned himself in and charged in this

case hadn't slept in over 24 hours. and this accident comes just as the trucking industry is fighting new federal regulations meant to give truckers more rest between trips. our report tonight from nbc's tom costello. >> reporter: it happened in the blink of an eye. >> there is a terrible accident that caused it to flip on its side. >> reporter: a walmart truck slammed into the back of a luxury bus killing jimmy "mack" mcnair and injuring tracy morgan, suffering from broken bones and expected to be hospitalized for weeks. >> it was unreal. i mean, i didn't know what happened. >> reporter: the truck driver, 35-year-old kevin roper is charged with vehicular homicide and assault. the criminal complaint alleges he hadn't slept in more than 24 hours. in 2012, 104,000 people were injured and 4,000 people killed in crashes involving large trucks. that's 11 people killed every day. the department of transportation estimates driver fatigue is a factor in 13% of truck crashes.

>> fatigue is a big concern of ours because for the very basic reason that commercial transportation is mostly 24/7 and humans are not. >> reporter: just a year ago federal regulations reduced the maximum workweek went from 82 hours a week to 70 for truckers. but just last week, under pressure from the trucking industry, congress moved to relax the mandatory rest rules. >> high beam, windshield wiper, honk your horn. >> reporter: meanwhile, the truckers who keep the nation's economy rolling are under increased scrutiny at check points across the country this month. federal, state, and local police cracking down on safety violations including keeping accurate logbooks that record a driver's total road time but in a 24/7 economy, all too often sleep becomes a luxury. >> they may be on a time crisis. they may have had no vehicle repairs that they needed. they have to make up time. >> reporter: time is money. >> time is money. >> reporter: today the trucking

industry said no hours of service rules can address what a driver does in his or her off duty time. the driver in saturday's fatal crash is scheduled for arraignment on wednesday. but tonight, walmart says it believes its driver was operating well within federal regulations. tom costello, nbc news, bethes bethesda, maryland. we have an update tonight on this ongoing scandal at the va. a new internal awe did reveals a long and intolerable wait for tens of thousands of veterans. more than 57,000 of them have been waiting at least 90 days for the first medical appointment. 13% of schedulers at va facilities reported being told by supervisors to falsify appointment schedules to make those wait times appear shorter. bowe bergdahl is talking to u.s. military officials in germany, telling them he suffered harsh treatment at the hands of the taliban including being confined to a small metal cage in the dark for weeks after

he tried to escape. bergdahl released nine days ago has yet to contact his parents who for their part have received threats and are reportedly under police protection. the taliban claimed responsibility for a fierce attack on the busiest airport in pakistan in karachi. it lasted five hours in all, at least 29 people were dead by the end of it including the ten heavily armed attackers who dressed as police guards setting off explosives and opening fire in the international terminal. there are reports from pakistan the attackers may have intended to hijack an aircraft initially. back in this country, hillary clinton is making news tonight, sitting down for an extensive interview with our own cynthia mcfadden, in which she discusses her time as secretary of state and the one thing she says that from that time she would like to do over. cynthia having emerged from the interview is here with us in the studio and cynthia, i understand she is making news on benghazi first and foremost. >> yes.

she said if there's one do-over, without taking a beat, she said it would be about benghazi. she told me the book is highly detailed and very specific and i asked her whether or not she kept a diary while she was secretary of state, especially about benghazi issue and she said she took a lot of notes. i asked whether or not the house committee currently investigating asked for the notes and she said and i quote they can read it in the book. will she testify before the committee if asked, she said she would have to wait and see if it's a sincere effort or a political show. >> how does she seem considering the assumption of so many people she's getting ready for a run here? >> she says she's healthy and she certainly seemed very much in command during our interview. she says she doesn't know why karl rove raised her health and he never does anything by accident, there was a purpose behind it and if she decides to run for president, more about that later -- more about that later -- that she will indeed

turn over her health records. >> more of it later in fact, we'll see the interview on the broadcast tomorrow. cynthia, always a pleasure. thank you for coming by, cynthia mcfadden who just emerged from this interview with hillary clinton. we'll take a break and still ahead for us on to this monday night, the agony of defeat and the rant heard around the world. an apology tonight but the question remains, was the race fair? and later, we're there with a pair of brothers on an inspiring 40-mile journey that's brought a lot of folks to tears along the way.

he apologized profusely today for letting emotions get the best of him, displaying agony of defeat and the candid language we don't usually get to hear on national television but some thil .steve coburn, co-owner of california chrome, had a point when he spoke out to a large audience right after his horse lost the belmont stakes this weekend. our report on all of it from katy tur. >> it won't be a triple crown this year. toalist got there! >> reporter: if fans were disappointed by california chrome's dashed dreams his co-owner was furious. decrying the runner for not running the first two races.wi running the first two racen for running the first two racen for running the first two racet for running the first two racee for

running the first two racew for running the first two racei for running the first two racen for running the first two racen for running the first two racete fo running the first two racer for running the for not or ning the for not my thi >> reporter: even waving off his embarrassed wif > earns points to run in the kentucky derby, those 20 horses that start in kentucky are the only 20 available to run in all three races. this is the coward's way out. >> reporter: suddenly, the cinderella story about an every-man owner beating the odds that defied all odds, turned into rant that overshadowed the race itself. >> bd bad timing, bad sportsmanship, sour grapes, sore loser, bad in every respect. >> reporter: on the other hand -- >> he raises a point that should be debated. >> reporter: in the triple crown's 96-year history, only 11 horses have managed to win the kentucky derby, the preakness and then the belmont stakes. it's tough. but every one of them managed to beat opponents that hadn't run in all three races. secretariat outran three horses with fresh legs, seattle slew five, affirmed, three. like it or not, the triple crown

has always been raced this way. do you think steve coburn has a point? >> i think he does. the game has completely changed. the belmont is a mile and a half race and you don't have horses that can run that anymore. they are not bred for it. >> reporter: california chrome may not have made history this weekend, but his co-owner certainly made headlines. katy tur, nbc news, new york. and when we come back, caught on camera, a couple out for a drive getting the shock of a lifetime.

>> a heck of a moment for a couple driving in their truck in canada during threatening weather. take a look at this video. near alberta, a lightning bolt struck their truck. it filled the cab with smoke, set off the air bags, rippled the metal body, melted the bed liner, locked the doors and windows.

they were a okay physically but were trapped inside until a royal canada mounted police officer busted them out with his baton. more news from the road, a new report is out and says americans are driving older vehicles than ever before because of the great recession. the age of the average car 11.4 years and report a surge of newer vehicles just now hitting the road as the economy improved for some. there are a record number of vehicles on the american road. almost 253 million registered vehicles. the car business is giving back to detroit in a big way after the city went bankrupt. the world class art collection has been threatened, some suggested it should be broken up and sold, auctioned off to pay the bills, but now the big three auto makers pledged $23 million. it includes the works of many and the two that declared bankruptcy, gm and chrysler emerged from it to put up the money. no one knows where the

tradition started. it's big in paris and grown too big. we're talking about the ritual where young lovers seal their love with a padlock on a foot bridge. a lot of them date back to the liberated paris during the war but there are so many of them, tons of them, one grate has collapsed and threatening the structure of the bridge, threatening those in the river below. there are locks on a number of bridges on paris. it spread to bridges for to matter around the world to brooklyn. a nasa astronaut currently on the international space station has posted a short, repeating video on vine. it shows an entire orbit of the planet that takes 90 minutes to complete. and because of the angle of their orbit when this video was taken, the sun never rises or sets. it stays in that circle the entire time.

when we come back tonight, the emotional journey for a pair of brothers on a mission. their story inspiring so many people.

our final story here tonight is about two brothers with an incredible bond.

they spent this past weekend doing something very special, very unusual. for 40 miles across southern michigan a teenager gave his little brother a piggy back ride, not to break a record but raising awareness and trying to make a point. we get their story tonight from our national correspondent skate snow. >> reporter: hunter gandy gave the eighth grade graduation speech friday. >> every one of us has the potential to change the world. it's just a matter of finding ways to do it. >> reporter: he's a straight "a" stun student, captain of the wrestling team, but the title that matters is the one his 7-year-old brother gave him. >> he's superman. my brother is awesome. he always looks out for me. >> eyes up, look at me. >> reporter: braydon has cerebral palsy, it's hard to control his muscles.

>> i'm like any kid but the only difference is walking. >> reporter: the only difference is walking, yeah. you're just the same on the inside, right? >> yeah. >> reporter: braydon is in a regular first grade class but his walker doesn't work well in the mulch. >> when i go through something hard, he has to work hard to get through every day of life. >> reporter: big brother hunter decided if he could tell the world about braydon, maybe some engineer out there would be inspired to build better equipment for all kids with cp. hunter dreamed up the idea of walking 40 miles with braydon strapped to his back from their hometown to the university of michigan in an arbor. >> i want to raise awareness for cerebral palsy. we want to give them hope, inspiration. >> reporter: some inspiration. do you think you can do that? >> yeah. >> reporter: every one in town seemed to show up at the send off on saturday. some walked with them, some cheered them on. they wore special harnesses and slings to help distribute braydon's weight and made it 25 miles. >> i'm feeling great, what about you, bray? >> i feel good, too. >> reporter: but sunday the

brothers woke to rain. braydon had blisters where his legs were rubbing against the harness. with just ten miles to go, braydon was clearly in pain. >> if i have to put you in the stroller, that's what we have to do. okay. >> reporter: braydon said he wanted to keep going and with his physical therapist's permission, they walked on. hunter at times cradling his brother in his arms and then the sun returned and so did that smile. [ cheers ] [ applause ] >> reporter: the two brothers crossed the finish line as one. >> thank you guys for all the support. >> reporter: showing the world what courage can look like. kate snow, nbc news, michigan. how about that? so we end with some inspiration on this monday night as we start off a new week back home from normandy. thank you for being with us. i'm brian williams.

of course, we hope to see you right back here tomorrow evening. good night. nbc bay area news starts now. right now at 6:00, searching for an arsonist just as our temperatures soar and the fire risk increases. thanks for being with us on this monday. >> the heat is on, and it's not only sweltering, it is down right dangerous. a serial arsonist is on the loose, setting five fires over the weekend in livermore. firefighters are on alert. jeff ranieri is tracking the hottest temperatures, but we begin in livermore which is really facing a double threat,

the hottest place in the bay area and the arsonist. >> reporter: that's right. no leads yet on that suspect. and the heat has not let up yet. the temperature gauge is showing it's only 3 degrees higher from today's probable high. an ember flying onto property could be disastrous. >> everybody here's a nervous wreck. >> reporter: liver more firefighters are on their toes during this stretch of hot weather. they say a serial arsonist is on the loose, having so far set five fires since saturday night. chris gowdy works very near one of the blazes and is hoping security tape caught the suspect. >> if ithopefully it's not an arsonist, but if it is, i hope they catch him soon. >> reporter: