History. Why are they still being put in brandnew cars. Nightly news begins right now. Announcer from nbc news World Headquarters in new york this is nbc nightly news with lester holt. Good evening. Im Savannah Guthrie in for lester. There were moments of terror and fear today on a Major College campus in the nations second largest city. Ucla under lockdown for several tense hours this morning, with reports of a shooter on the loose on campus. Thousands of students running for safety. In the end, two people were killed. A professor and a student. In a murder suicide. Police are still trying to unravel. It had an entire city on edge and on high alert. Reporter police streaming from across los angeles. A huge response to reports of a shooting on ucla campus. From above, the sights of tactical teams spreading will out, looking for the shooter, and extracting students to safety. I was just on my way to class. Two Police Officers came running towards me. They screamed get out of the hallway reporter while inside the lockeddown buildings, social media showing classrooms students taking cover. In the lockdown site that i was at some of the students were calling their parents, telling them that they loved them. Reporter after nearly two hours of uncertainty the murder victim and the suspect appear to be at the scene. The pistol is at scene. We think its entirely contained within the office that it occurred in. Reporter lapd now says the shooting happened inside an engineering building. A professor killed before the gunman took his own life. The motive still being investigated. The shooting scare coming right before finals for the 43,000 students on campus. How do you concentrate on finals after Something Like this . Thats exactly what i was thinking. My brain just cant go back to that now. Reporter how to reassure a student body at another university locked down by a shooting on campus. Tonight several Law Enforcement sources tell nbc news that the shooter appears to have been a student who had a grudge against a professor. Classes are scheduled to resume tomorrow morning. Savannah . Gadi schwartz on campus for us thank you. Tonight were hearing audio of the moment a terrified mother called 911 to report her toddler had fallen into the gorilla enclosure at the cincinnati zoo. The child was rescued unharmed after zoo officials made the decision to shoot the gorilla. A controversial call still being debated nationwide. Nbcs joe fryer now with the tapes and the latest on the investigation. Reporter 911 calls capture a mothers frantic moments after her 3yearold son fell into the gorilla enclosure at the cincinnati zoo. At times the 420pound silverback gorilla could be seen pulling the boy across the moat. Eventually zoo officials decided to shoot and kill the gorilla. Today the boys family released a new statement saying the child had a checkup with his doctor and is still doing well. We continue to be thankful to the cincinnati zoo for their actions taken to protect our child. Zoo Officials Say it appears the boy went over a 3foot barrier and through several bushes before falling 15 feet into the moat. Cincinnati police say theyll review the actions of the boys family leading up to the incident. The family has reportedly received death threats, and online nearly half a Million People called for a petition for the boys mother to be charged. Police will not be investigating the zoo, but the association of zoos and aquariums which accredits of zoos will look into the incident. These enclosures not only have to protect the animals on the inside but they have to protect the public on the outside. Reporter tonight the Cincinnati Enquirer reports the police have wrapped up their investigation, and the prosecutor could make a decision on whether anyone will be charged by weeks end. Joe fryer, nbc news cincinnati. Stunning news about the biggest recall in american history. Upwards of 69 million cars with potentially explosive air bags. Theres word that at least four automakers are still selling new cars with those same kind of potentially faulty air bags. Nbcs tom costello now with a consumer alert. Reporter its terrifying news for anyone considering a new car. Some of those cars come with potentially defective air bags that will likely be recalled in just two to three years. But sold legally now, because investigators believe they wont go bad for at least six years. I have this scar here on my arm. I have this one down here where they removed a chunk of metal. Reporter already ex ploeting takata air bags have injured more than 100 people and killed ten. Most recently 17yearold huma in texas. Its absolutely ridiculous that the American Consumer buys a new car only to find out in two years that its going to be recalled. Reporter among the new models currently being sold with suspect air bags the 2016 and 17 mitsubishi and volkswagen cc and 2016 audi and r 8. Toyota and Fiat Chrysler are also selling vehicles with the potentially defective air bags although they insist theyre not under recall. Fiat chrysler tells nbc new they meet or exceed all applicable safety requirements. But car dealer steve says vw isnt telling its customers about the air bags. He is and wont sell the affected model. If we know itsa poisonous issue like the air bags were not going to sell it. Were not going to put our customers at risk. Reporter the problem . There simply arent enough replacement air bags for the cars already under recall. Are you comfortable with how quickly these takata air bags are being replaced . Absolutely not. Thats the worst lesson from the last young woman who lost her life. Reporter buyer beware the car may be new, but it may be coming with a defect and looming recall. Politics now. There are new questions being raised about Donald Trumps business history, which he has repeatedly offered as a key credential in his run for president. Newly unsealed testimony, former employees of Trump University accuse trump of running a fraudulent scheme. Nbcs katy tur has been digging into the testimony. Katy good evening. What have you found . Reporter good evening, savannah. 3,500 legal actions in the past three decades, donald trump is officially the mostly tijous president ial nominee in u. S. History. The Class Action Lawsuit against him has many wondering if he may have made millions off the backs of struggling americans. Donald trump selling the American Dream on the campaign trail. I will give you everything. Reporter but is now defunct forprofit university is accused of crushing that dream, scamming hopeful students with aggressive sales tactics and false promises. Success, its going to happen to you. Reporter trumps secret to selling unsealed by a federal judge. Hundreds of documents, including testimony from one former sales manager. Saying Trump University was a fraudulent scheme. That preyed upon the elderly and uneducated to separate them from their money. Another Sales Executive saying it was just selling false hopes and lies. The candidate facing trial in november is now calling out the ethnicity of the cases indianaborn judge. The judge, who happens to be we believe, mexican, which is great. What hes doing is a total disgrace. Reporter trumps lawyer denies fraud and points nbc news to this campaign video. I must tell you that the courses that i took were outstanding. Reporter the University Seminars at first free were aggressively sold from 1,500 to 35,000. Students allegedly encouraged to max out their credit cards. I was highly deceived. Reporter plaintiff George Hannah said he drained his retirement to pay for Trump University. I get this sick feeling in my stomach to not only see that you know from my own personal experience but i see him playing those same exact cards with this whole country. If it looks like these businesses were not well run, it could cut a real hole into his case that he is the best person to run this country and make it great again. Reporter katy tur, nbc news, sacramento. Im Kristen Welker in new jersey where Hillary Clinton wasted no time on going after donald trump on Trump University. This is just more evidence that donald trump himself is a fraud. Reporter the clinton team hoping they finally found a message that sticks painting the billionaire businessman as a con artist. He is trying to scam america the way he scammed all those people at trump u. Reporter but its not the first time trumps rivals have tried this strategy. This man is a pathological liar. A con artist. Reporter will it work for Hillary Clinton . The Clinton Campaign is counting on research surrogate, and Hillary Clinton herself driving a message that none of Donald Trumps previous opponents were able to do. Reporter and late today, the current commander in chief broadening the attack arguing trumps tax plan will hurt the middle class. That is not going to make your lives better. That will help people like him. Reporter but clintons attempts to focus solely on trump complicated by her ongoing primary battle. Tonight our news nbc poll is showing Bernie Sanders is now just two points down in california. Sanders still drawing huge crowds crisscrossing the state. I saw Hillary Clinton racing to california. Bill clinton racing to california. Maybe they think this campaign is not quite over. Reporter to sanders point, clinton has rearranged her clinton to head out to california tomorrow sooner than expected and shell deliver a speech on foreign policy. Again attacking trump. Kristen welker on the trail for us thank you. There is little relief in sight tonight in south texas where historic floodwaters have overwhelmed entire communities. Triggering more water rescues today. And there are new concerns that one of the hardest hit areas may never fully recover. Exhausted residents brace for more. Nbcs gabe gut ez is on the brazos river for us tonight. Reporter its home is where the heart is. Tonight more of texas is heart broken. Just total devastation. Reporter before the Farming Community looked like this. Now authorities estimate about 80 of it is either damaged or destroyed. Including 300 homes in this subdivision. The sheriff showed us the division where some 300 homes are underwater. This town has never seen anything like this. No they havent. Now the real question will be for the 800 or so citizens out here are you going to rebuild. Reporter the historic floods crippling the state. This jeep swept away by the raging waters. Today near dallas even more heavy rain. First responders rushing to rescue drivers. Im not leaving the house. Reporter a rescue mission of his own. The floodwaters already claimed his house in richmond. But after living in texas all his life no soaking would stop this cowboy from checking on his neighbors. Thats what we do around here. Weve always helped each other. Dont fall down. Reporter it isnt long before he finds Nancy Gonzalez and her son trapped. The water had just crept into their home. Ever seen a flood like this . Never. Reporter tonight this family is safe. Finally on dry land. But the toll in texas is mounting with more storms predicted through the weekend. Gabe gutierrez, nbc news richmond texas. Troubling news tonight concerning the zika virus. A baby has been born in new jersey with a severe birth defect linked to zika. The Health Officials are quick to point out the babys mother did not contract the virus in this country. Nbcs Anne Thompson now with the details. Reporter this new jersey hospital is where a 31yearold woman from honduras delivered a baby girl afflicted with microselfy caused by the zika virus. Doctors say the mother contracted the virus in honduras and then came to the United States specifically for care. Quite frankly, its catastrophic for a young, healthy patient whos seeking to get pregnant or is pregnant to counter this. Reporter the cdc is currently following 300 pregnant women in the u. S. And its territories who contracted zika. New york mothertobe Andrea Osbourn traveled to jamaica while she was pregnant and is now closely monitored. It is pretty scary. Because Everyone Wants to have a healthy child. And to know a mosquito can cause all this is crazy. Reporter pregnant women exposed to the zika have a 1 to 13 chance to giving birth to a baby with microcephaly. Women who could become pregnant are told to avoid traveling to central and south america, and parts of the caribbean, including puerto rico. The infected mosquitoes are not in the u. S. Yet, but officials are on alert. I wouldnt be surprised if we have a small local outbreak of people who actually get infected while in the continental United States without leaving it. Reporter trying to protect americans against an epidemic still unfolding in other parts of the world. Anne thompson, nbc news. Still ahead tonight, a major new fda alert about all the salt we may be eating without even knowing it. What the government is doing to drastically cut the sodium hidden in our diets. Also a startling new warning about the top distraction for teens behind the wheel, and surprise its not cell phones. Look the wolf was huffing and puffing. Like you do sometimes, grandpa . Well, when you have copd it can be hard to breathe. It can be hard to get air out, which can make it hard to get air in. So i talked to my doctor. She said. Symbicort could help you breathe better starting within 5 minutes. Symbicort doesnt replace a rescue inhaler for sudden symptoms. Symbicort helps provide significant improvement of your lung function. Symbicort is for copd, including chronic bronchitis and emphysema. It should not be taken more than twice a day. Symbicort contains formoterol. Medicines like formoterol increase the risk of death from asthma problems. Symbicort may increase your risk of lung infections osteoporosis and some eye problems. You should tell your doctor if you have a heart condition or high Blood Pressure before taking it. Symbicort could mean a day with better breathing. Watch out, piggies children giggle symbicort. Breathe better starting within 5 minutes. Call or go online to learn more about a free trial offer. If you cant afford your medication, astrazeneca may be able to help. Its dinnertime and you may be reaching for that salt shaker but the fda is hoping this next story will give you pause. The agency is out with dramatic new guidelines sharply reducing how much salt is recommended, saying americans are consuming too much sodium and getting it from foods where they may least expect it. Nbcs rehema ellis has the story. Reporter in a sweeping proposal years in the making today the fda called for a sharp reduction in the sodium found in 150 categories of processed and restaurant food. Why . Americans consume on average 3,400 mill i grams of sodium a day, about 1 1 2 teaspoons of salt. The proposed guidelines would cut that by onethird over the next decade. A major effort because more than 70 of sodium consumed is already in food before it reaches the table. Some surprising culprits . Salad dressing, bread and cereal. Medical experts today saying limiting sodium is important for americas health. One out of three americans suffers from high Blood Pressure even one out of ten children. If you have high Blood Pressure try to reduce your salt intake. If youre otherwise healthy, and have a low Blood Pressure you may not need to worry about salt. Reporter today the Grocery Manufacturers Association called for more research into the acceptable range of sodium intake for operate mal health. If youre taking the salt out what can you put in food so it still tastes good . Theres a lot of different ways to flavor food that doesnt require salt. You can do fried herbs or fresh herbed or onions or gab lick is really good. Reporter all part of an effort to cut americas craving for salt. Rehema ellis, nbc news, new york. Up next searchers may have gotten the break they were hoping think youre taking whats best for your heartburn . Try nexium 24hr. Now the 1 choice of doctors pharmacists. For their own frequent heartburn. Get complete protection with nexium 24 hour. Dont let dust and allergies get between you and lifes beautiful moments. With flonase allergy relief, they wont. Most allergy pills only control one inflammatory substance. Flonase controls six. And six is greater than one. Flonase changes everything. A potential big break in the search for the egyptair flight that crashed nearly two weeks ago. A ship has picked up signals believed to be from the planes black boxes. Waters run as deep as nearly 10,000 feet. The cause of that crash remains a mystery. The surprise about teens and distracted driving. Aaa monitored thousands of teens with dashboard cameras over a period of eight years, and researchers found the main be source of distraction was not texting, which remains a dangerous problem, of course but its actually the passengers in the car that factored into most distracted driving crashes. When we come back the hollywood icon who would have turned 90 today. Why the mystique of marilyn still lives on. I had so many thoughts once i left the hospital after a dvt blood clot. What about my wife. What were building together. And could this happen again . I was given warfarin in the hospital, but wondered was this the best treatment for me . I spoke to my doctor and she told me about eliquis. Eliquis treats dvt and pe blood clots and reduces the risk of them happening again. Not only does eliquis treat dvt and pe blood clots. But eliquis also had significantly less major bleeding than the standard treatment. Knowing eliquis had both. Turned around my thinking. Dont stop eliquis unless you doctor tells you to. Eliquis can cause serious, and in rare cases, fatal bleeding. Dont take eliquis if you have an artificial heart valve or abnormal bleeding. If you had a spinal injection while on eliquis call your doctor right away if you have tingling, numbness, or muscle weakness. While taking eliquis, you may bruise more easily. And it may take longer than usual for bleeding to stop. Seek immediate medical care for sudden signs of bleeding like unusual bruising. Eliquis may increase your bleeding risk if you take certain medicines. Tell your doctor about all planned medical or dental procedures. Eliquis treats dvt pe blood clots. Plus had less major bleeding. Both made switching to eliquis right for me. Ask your doctor if its right for you. You totaled your brand new car. Nobodys hurt, but there w ill still be pain. It comes when your Insurance Company says theyll only pay three quarters of what it takes to replace it. What are you supposed to do . Drive three quarters of a car . Now if you had Liberty Mutual new car replacem ent, youd get your whole car b ack. I guess they dont want you driving around on three whee ls. Sm art. With Liberty Mutual new car re placement, well replace the full value of your car. See Car Insurance in a whole new light. Liberty mutual insurance. Finally tonight, a hollywood legend who would have celebrated her 90th birthday today. Marilyn monroe the blond bombshell who lit up the Silver Screen in the 50s and 60s is still just as famous as ever. Nbcs Cynthia Mcfadden looks at why marilyns memory lives on all these years later. Reporter Marilyn Monroe played the dumb blond so well a lot of people thought it was who she was. I always say a kiss on the hand might feel very good but a diamond tiara lasts forever. Reporter it would have been the actress 90th birthday. Which raises the question why, why does she endure. In part perhaps she perfectly represents the conflicting attitudes about women and sex in the 1950s. Sometimes bold and brassy, sometimes sweet and vulnerable. Perhaps, too, because while shes been copied and parodied over the years, she has never been matched. Born in 1926 she grew up with foster families wedding for the first time at 16. Married to dimaggio and playwright arthur miller. At age 36 she made one of her most famous personal appearances. Happy birthday mr. President reporter her vulnerability not an act. She would be dead three months later for a drug overdose. She believed she was not taken seriously as an actress. In her last interview two days before her death, she pleads please dont make me look like a joke. Her fans have made sure of that. Cynthia mcfadden, nbc news new york. That will do it for us on this wednesday night. Im Savannah Guthrie in for of violence. The new photos she just unleashed claiming a pattern of abuse. Now on extra. Amber heard on the cover of people with a bloody lip claiming shes been living as a battered wife. How their marriage turned toxic. Plus hes got a private island shes facing a mountain of debt. Johnny and ambers 450 million financial feud revealed. Rare neverbeforeseen video of o. J. From College Football star to celebrity groom. A sneak peek at espns new simpson documentary packed with untold stories. Marcia, what are you talking about . Two new couple alerts. Khloe kardashian shaking her booty with nfl superstar odell beckham, jr. Drake hooking up with biebers model ex. You guys dating or what . Plus Jessica Alba Ina i bikini taking us through her nightly beauty ritual. Every night you have to now on extra from Universal Studios hollywood, the entertainment capital of l. A. Hi ev