concert, special seats. >> kudos to lizzo. >> that's the story of the night. thanks for joining us on this friday. have a safe weekend. >> bye-bye. breaking news tonight, the deadly mass shooting at a u.s. naval base. a gunman identified as a member of saudi arabia's air force three victims killed, several injured. the chaos inside the base, two deputies wounded in the shootout. >> stepping over a bloody broken glass and unfortunately, there are bodies there. >> the gunman receiving military training the second deadly shooting at a u.s. base in just three days what the saudi king is saying about the attack and the fbi investigation tonight, was it terrorism also this evening, the tr questions after that deadly highway shootout 19 officers opening fire on armed robbery suspects in a high jacked ups truck the the driver held hostage and killed in the cross fire his family's outrage

at the police. the late word from the president's white house counsel, what they are refusing to do ahead of a critical impeachment ar the major coast to coast storm threat beginning sweep across the country. heavy rain, wind and snow, the new track tonight. the new warning for holiday travel heating up why an alarming number of tsa screening check points may not be able to track a bomb. the irritation for amazon customers, why the holiday packages may not be arriving on time >> announcer: this is "nbc nightly news" with lester holt. good evening, in florida a saudi military officer is the shooter that killed three and wounded eight in an explosion of violence at a sprawling u.s. naval base the suspect who was training at the pensacola naval air station was shot and killed by responding wounded. tonight the search for a motive after the second mass shooting on an american navy

base this week our team has it covered starting with blayne alexander. >> reporter: the urgent calls came before 7:00 this morning. >> i need to try to find an ambulance or the closest hospital, please. >> reporter: an active shooter inside a classroom building at naval air station pensacola. deputies were on the scene in less than five minutes, law enforcement officials tell nbc news the shooter was mohammed on base for training officers engaged him in a gun battle ultimately killing him. >> walking through the crime scene was like being on the set of a movie police say he killed three and injured eight more including two deputies, all rushed to the hospital. >> all these brave warriors who wear the wings come here through for flight training and so this is a dark day for very great place. >> repr:of the first to arrive on scene. >> stepping over broken glass

you're stepping over bloody broken glass and there is bodies you're seeing and going past. >> reporter: today responders in all uniforms are being hailed for their bravery. >> there was some real heroism today. real heroism i couldn't be proude to wear the uniform i wear. >> reporter: the home of the iconic blue angels, this busy military base is known by some as the heart of pensacola employing more than 23,000 military and civilians. the base regularly holds active shooter drills training officials hoped to never have to use. but now, after one of the darkest days, the sheriff is sending this powerful message to members of the base and beyond. >> you can be proud of your community you can be proud of your navy. thank god for the united states of america. >> reporter: and tonight, officials have not released th names of the victims now we do know that the two deputies suffederiff, thank god >> blayne alexander they are alive lester

for us tonight, thank you. >> we're learning much more about that saudi airman official say carried out the shooting and hearing the action from king salman we get that from pete williams. >> reporter: military and law enforcement officials say mohammed was a second lieutenant in pence pensacola for flight training the pentagon say he arrived two years ago and was scheduled to finish next august officials don't know why he fired on fellow flight students, if this is a personal grievance or act of terrorism but the fbi is in charge of the investigation. king salman immediately condemned the shooting according to president trump. >> the king said that the saudi people are greatly angered by the actions of the shooter and this person in no way, shape or form represents the feeling of the saudi people. >> reporter: the u.s. has trained pilots from other countries for decades to work more closely with the u.s. military in combat and the navy

was commending that today. >> it's important the cross training with the allies is something we've done for a long time. >> reporter: a former u.s. intelligence official says foreig military personnel that come to the u.s. for training are carefully screened. >> any time an issue like this crops up or an event like this crops up, you have to look at your systems and ask what could we have done to prevent it and engage in more effective screening of people coming to the united states. >> tonight, investigators are scouring through his electronic devices and talking to instructors and fellow students and looking for clues about what led up to today's shooting if this was an act of terrorism, it would be the first one in the u.s. by a saudi national since 9/11. >> pete williams, thank you. the two deadly attacks on military bases this week are shining a spotlight on potential insider threats to american service members at facilities where they should feel safe we get more from kerry sanders. >> reporter: it's a

nightmare becoming all too familiar for our armed forces a gunman opening fire at a military base today's deadly shooting in pensacola follows an incident at pearl harbor naval shipyard on wednesday where an active duty sailor killed two people and himself in the past ten years, there have been 19 shootings at military bases, much of the violence carried out by an inside threat. including at fort hood in 2009 when the major nadal hassan gunned down 13 people and in 2013, a contractor shot and killed 12 people at washington naval yard after that incident, an independent review warned security was too focused from threats from outside instead of inside the base and recommended redu now, authorities are investigating another mass shooting on a military base. the second in just three days. >> whenever you have two shootings on military bases, naval

bases in proximity, time, the naval commanders need to tighten up and will until they can get the full scope of what might have happened. >> reporter: earlier today, at patrick air force base in florida, an evacuation because of a bomb threat authorities found nothing. tonight because of what happened here, all threats taken seriously. lester >> kerry, thank you. >> also this evening, troubling questions after another deadly shooting in florida. a ups driver and a by stander killed after two suspects hijacked the truck and exchanged gunfire with officers as nbc's morgan chesky tells us, his family says the bloodshed could have been avoided and some of this video is highly disturbing. >> reporter: the deadly gun battle caught on camera that tonight has authorities defending their response. >> just turned off of pines boulevard. >> reporter: a run away ups truck stolen by two men, now

identified as lamar alexander and ronnie hill who led police on a nearly 30-mile chase in rush hour traffic on thursday. bullets flying in the busy intersection leaving drivers ducking for cover. the suspect is accused of trying to rob this jewelry store minutes before taking ups driver frank hostage the father of two's final moments witnessed by his family on live television as he was caught in the fatal cross fire between the suspects and police. >> devastation is the keyword. i still can't believe it. >> reporter: his stepfather joe moreno calling the police's response rushed and premature. >> look at the video other tactic should have been applied. >> reporter: four other agencies took part miami-dade police stressing everything hinged on the suspects firing first. >> it's a situation dictated by the subjects if they stuck their hands out, ideally they wouldn't have

pointed the guns and shot at the officers, we could have started negotiations. >> reporter: the other by stander killed, richard cutshaw. the suspects dead. the bullet riddled truck towed away, the family unable to shake what they witnessed. >> i knew he was dead. he wasn't moving. >> reporter: and tonight, 13 officers from here at miami-dade police department have been placed on administrative leave, important to note is standard protocol any time an officer discharges their weapon. >> thank you. tonight we're tracking a massive storm sweeping coast-to-coast this weekd. it's blasting to shore on the west coast with heavy rain and snow by sunday it heads into the rockies and the southwest and come monday, heavy rain will hit the west east coast. there is late word tonight from president trump's white house counsel indicating to house democrats that they will not take part in further impeachment proceedings. peter alexander has

details. >> reporter: the white house rejecting the invitation for the president to participate in the impeachment proceedings. white house counsel in a blistering letter calling the investigation completely baseless adding you should end this inquiry now and not waste time with additional hearings. tonight's decision no surprise for president trump cooperating with the process he's repeatedly attacked would under cut his rallying cry. >> they are pushing the impeachment witch hunt. >> reporter: instead, tonight the president and his allies are preparing to mount a defense in a likely impeachment trial next year with the president' confidence he would be acquitted. >> the president violated the constitution. >> reporter: house speaker nancy pelosi defending her decision to move forward. >> if we were not to, any future president he does this go next? >> house democrats plan to work this weekend and draw up the articles of impeachment with lawyers from both

parties scheduled to make presentations during the public hearing on monday. >> thank you we'll have coverage of the hearing monday here on nbc. in the meantime, president trump is touting more stron economic numbers with the jobs report exceeding expectations and adding 266,000 jobs in november part of that coming from 50,000 gm workers returning from after a strike unemployment dropped back down to the lowest rate in 50 years, 3.5%. now to shocking surveillance video capturing the death of a teenage migrant in a holding cell outrage is growing over the handling of his death while in u.s. custody because of what's on the tape and what isn't gabe gutierrez has the story and we have to warn you here, the video is disturbing. >> reporter: these are the final moments of carlos vasquez' life this video is sparking outrage how he died in a border patrol cell in may nbc news obtained the video from weslaco police department that

investigated his family in guatemala is still devastated more than 2,000 people turned out for his funeral. the 16-year-old can be seen crossing into the u.s. nearly a week earlier. he was diagnosed with the flu and sent to a quarantine facility. he and his cell mate are sleeping on kron concrete and blanket for a half hour he's doubling over in pain. after falling to the floor, he walks to the toilet where he collapses and a four-hour gap in the video. records obtained show an agent logged welfare checks but the gab in the video raises questions whether that actually happened when the video comes back, vasquez is in the same spot. the cell mate is seen calling the guards and realize he's dead. the video contradicts customs and border patrol statements vasquez was found unresponsive during a welfare check. >> this child should

have been transported to a medical facility or had a doctor come and visit and give proper treatment. >> reporter: cbp has significantly increased the number of medical personnel in the southwest border in the last six months and that it's still investigating this case so it can't discuss details. leaving many unanswered questions about how this teenager died in custody. gabe gutierrez, nbc news, new york. we have a followup to the story we broke last night about uber and the thousands of sexual assaults reported by passengers and drivers. the company giving us an inside look how it fields those reports as it pushes for transparency across the industry let's get more from stephanie gosk. >> reporter: 4 million trips a day, that's 45 convenient, yes, but is uber safe >> uber has taken a lot of heat. >> every rider's worst fear. >> reporter: safety concerns pressed them to launch a first of its kind study spearheaded by tony west, the company's chief legal officer.

>> it's being honest with ourselves about what the data says we can begin to develop best practices. >> reporter: according to the findings, there were nearly 6,00 reported sexual assaults during or after an uber ride over a two-year period ranging from groping to rape. what happens when that complaint is made? >> it is sent to a special unit. >> reporter: in essence, an investigative arm. >> investigative arm. >> reporter: how is a tech company qualified to have that investigative arm? >> well, i think inherently, in company is probably qualified to have that arm that is why you havech out to experts in the field. >> repors those experts train uber employees in this phoenix support center. >> we have a series report there was physical touching. >> reporter: fielding the most severe complaints is there any indication from the data that sexual assault is more prevalent during uber

rides than in other public places? >> i think the answer is no. it's difficult to make comparisons to other modes of transportation because we have not seen this kind of data before. >> reporter: today, survivor advocate organizations applauding uber for its transparency lyft tells nbc news it remains committed to releasing its own safety transparency report and working to share information about drivers that don't pass the background checks or are deactivated from the platform. >> the most important thing we can do is to ensure that we're being honest with ourselves about what is going on. >> reporter: uber trying to take the lead on driving change across the industry. stephanie gosk, nbc news. coming up next, a new warning for air travelers, the outdated security screening equipment that could be putting your safety at risk. if you're planning to order something from amazon, we have the latest on what is causing delivery delays. the trip of a lifetime, how a tiny

town became famous for its big plunging adventure.

with two weeks until the holiday travel crush, the tsa is relying on outdated security equipment that may not be able to detect explosives here is tom costello. >> reporter: the weekly photos of the weapons confiscate taken under score the everyday threat. the investigation finds the tsa's screening technology is often years old and not updated to meet new detection requirements as of august, bottled liquid standards only met standards in 2006. x-ray units met 2010 standards and explosive trace detection units were up to 2012 standards. >> government appropriation process takes years and we face an enemy that i adaptive, they are patient and very agile. >> reporter: they are transitioning to 3 d scanners to search

through bags and highlight potential threats. >> with one finger, i simply rotate the image in any access i want. >> reporter: the tsa says it concurs with the recommendations and will assess screening technologies to detection performance over time. gao investigators found it can take tsa two to seven years to approve and rollout new technology it's urging headquarters to take steps to maintain and update technology to meet the evolving threat lester >> tom, thanks. still to come here tonight, delivery delays what's been holding up the amazon orders. mike bloomberg's never been afraid of tough fights,

the ones that make a true difference in people's lives. and mike's won them, which is important right this minute, because if he could beat america's biggest gun lobby, helping pass background check laws and defeat nra backed politicians across this country, beat big coal, helping shut down hundreds of polluting plants and beat big tobacco, helping pass laws to save the next generation from addiction. all against big odds you can beat him. i'm mike bloomberg and i approve this message. struggling to keep up with on time deliveries our jo ling kent has information to make sure your package gets there on time. >> reporter: tonight, record online shopping is already bogging down deliveries. sounding off on shipping delays on social media saying they should relabel it same month shipping for prime members. two-day prime shipping is more of when we feel like it than a

guarantee. amazon first pointed to order volume for delays then later saying in a statement some deliveries were briefly impacted by weather earlier in the week but we worked quickly to rebalance capacity major carriers are expected to deliver two billion packages this season as deadlines loom there are three days left to ship with smart post the last day for ups ground is next friday and post office recommends getting ground shipments out by next saturday to arrive in time for christmas jo ling kent, nbc news, los angeles. up next, we'll take you to a place where daredevils are taking adventure to new heights. >> announcer: "nbc nightly news" is brought to you by cosequin joint health supplements. help keep your pets moving with coes quinn.

finally student, we're jumping into the weekend with a world famous festival taking adventure to incredible nail biting new heights. here's gadi schwartz >> reporter: they lined up by the hundreds. >> i'm so excited, man. >> reporter: parachutes on their back but no plane in sight. >> most fun with your clothes on. >> reporter: instead, leaping into the great beyond from a platform before even a catapult. >> that was awesome. >> reporter: this is west virginia's famed bridge day, the only legal day base jumpers can hurl themselves into the river gorge i think they want you to jump. [ laughter ] >> reporter: while above a man dressed as eeyore is stoked when

he spots his mom. >> praying everything goes well. oh my god. >> three, two, one >> reporter: around 900 feet below, landings range from spot on to a little rocky and some soaking wet. a few bumps and bruises and footage galore and if you're curious, here is a little taste of what it would be like if humans could fly gadi schwartz, nbc news fayetteville, west virginia. >> you have got to be kidding me i'll take the stairs, thanks that's nightly news for this friday. i'm lester holt. thank you for watching everyone good night and have a great weekend.

right now at 6:00. not just packages any more. u.p.s. trucks are the target for thieves in the south bay. the pattern those crimes follow. new video of a deadly officer-involved shooting in the east bay. some say the story sh video tells conflicts with what police are telling. rain moving into the bay area. the question is, when are you going to get wet? news at 6:00 starts right now. good evening, thank you for joining us. i'm jessica aquirre. >> in the heart of this friday night commute, thankfully,

though, the rain is not widespread. at least not yet. >> team coverage for you tracking the storm and let's start with chief meteorologist jeff ranieri. the next couple hours is when it will start hitting us. >> the cold front moving into the bay area and beginning to pick things up and what i really want to underscore is that all of the weekend will not be wet here across the bay area. you can see what we're dealing with right now and then the saturday instability that will eventually move here. a slot here of what will be a break moving into the forecast. you might like that. not nearly as strong as that last weather event when we had the atmospheric river rolling through the area. mobile doppler radar picking up in the north bay, san francisco and off the peninsula with light to moderate rain, a few heavier pockets moving off to the north d