You. Nightly news begins right now. Announcer from nbc news World Headquarters in new york, this is nbc nightly news with lester holt. Good evening. Much of the nation held its breath this afternoon at first word of gunfire ringing out at the u. S. Capitol, wounding two people, sending tourists scurrying to safety and forcing government buildings into lockdown. It happened according to police after a tennessee man pulled out a weapon in the Capitol Visitors Center drawing fire from Capitol Police officers. Nbcs Peter Alexander has late details. Got to go. Shooting at the u. S. Capitol. Reporter terrifying moments at the capitol. Inside the Visitors Center panic. Capitol police with guns drawn as tourists flee. That way. Get out of here they said run. They told they told everybody to run. Reporter at the white house, entrances closed as a precaution in the middle. Annual easter egg roll. Police say the shooting happened shortly after 2 00 p. M. Here at the entrance to the Visitors Center on the east front of the u. S. Capitol. When the man approached the checkpoint, a requirement for all visitors. The individual drew a weapon and pointed it at officers. An officer fired and struck the suspect. Reporter officials identify the man as larry dawson, age 66, from antioch, tennessee, well known to authorities. He was under a court order to stay away from the capitol. Dawson was arrested last october after this outburst in the gallery overlooking the floor of the house of representatives. I am a prophet of god. Reporter a website for a Community Church in tennessee lists dawson as its pastor seen here advocating for a raise in the minimum wage. We believe that this is an act of a Single Person who has frequented the Capitol Grounds before, and there is no reason to believe that this is anything more than a criminal act. Reporter a woman in the Visitors Center was also injured. The suspect was rushed to the hospital for surgery. The Visitors Center was built in part in response to another shooting here in 1998 where a mentally ill man shot and killed two Capitol Police officers. Tonight Law Enforcement officials tell nbc news the suspects weapon was a realistic looking pellet gun. Todays scare came hours after an active shooting drill here at the capitol. The chief of the Capitol Police says his system worked. Lester . All right. Peter alexander, thanks. Turn now to the urgent manhunt overseas for the brussels terror suspect known as the man in white. Were getting a new look at him on security video just released today by police, and they are pleading again with the public for help in finding this individual. This as a man identified as the suspect by local media goes free. Nbcs keir simmons has the latest. Reporter tonight a stunning setback for investigators. The only suspect accused of terrorist assassination murder in connection with the brussels attacked free. Belgian media reported police favored Faycal Cheffou was the man in white seen in the newly released security video. Now prosecutors say the evidence against him is not there. More questions for belgian investigators with the clock ticking. The belgian authorities are beleaguered. Reporter and tonight the manhunt for this suspect goes on. They are going to have to make a greater effort, but it will have to be a europeanwide effort. Its not just one country. It looks like hes in disguise. Reporter we showed the video to a belgian analyst and isis expert who told us the man in white, with his hat and glasses, may have intended to escape. Maybe this guy is just too important to get killed in the attacks. Reporter authorities conducting terror raids across europe over the weekend. Meanwhile, the official number of americans who lost their lives, including justin and Stephanie Shults rose to four today. They loved their families. They lost their friends. They were just so special, and they were so cute together. Reporter and today a special service for the victims of the attacks. Among congregation, First Responders who treated the injured. Prayers but few answers for families increasingly angry. All loved him. Reporter jim ca neys daughter lost her husband Alexander Pinczowski at the airport. The former u. S. Ambassador questioning europes ability to stop attack. We all know that this attack could have been prevented. Her husband could still be alive. There was information, intelligence that we knew these murderers were connected with isis. We know who the enemy is. Reporter authorities here acknowledge there was some indication that someone was coming but did not have enough specifics to head it off. Meanwhile, plans to reopen the airport tomorrow have been delayed again. Tomorrow morning, lester, will mark a week since the attacks. All right. Keir, in brussels, not alone in their grempt the death toll rising in another unthinkable massacre overseas. At least 72 people are dead. Half of them are children, and at least 320 others injured after a taliban suicide bomber blew himself up in a busy park right near a playground targeting christians as they celebrated eastner pakistan. Nbc ebill neely is there. Reporter tonight the unbearable mourning has begun. A 16yearold laid to rest, and she is far from even the youngest victim of the Easter Sunday horror. The bomb was felt by thousands. Packed with shrapnel, it tore through a crowded park killing scores, most of them women and young children. Translator they were taking rides when the bomb exploded, he said. Tiny shoes were blown off. Tiny bodies shattered. Who. Reporter 10yearold sah ha d alley was badly injured and lost his cousin, sisters, ten from his family. Translator what can are more painful, asks his uncle, than this . Reporter the park has always been popular. Packed during holidays, it would have been just like this. The suicide bombers target was deliberate. Families lining up to buy tickets for a train ride and christians celebrating easter. The bomber killed around 40 children, many christian, but most were their muslim friends. So many children dead and among the hundreds injured. Hospitals overwhelmed. Wounded parents in one and children in the horse. Mohammed amins wife is now in critical condition. His daughter still traumatized. She keeps screaming, bang, bang and crying for her mother, he says. A Splinter Group from the taliban did this. It once pledged allegiance to isis, but now murders independently. The spark now deserted, the rides abandoned and the images a haunting image. Tonight the pakistani Prime Minister promises to avenge this bombing. This is one of the worst attacks in a country that feels itself in a long war. Lester . Painful images. Bill neely tonight, thank you. Back in this country theres growing backlash over what some call religious freedom laws and others gallon antilbgt discrimination. In georgia the governor has backed down saying hell veto a bill that has generated a backlash from some of the Biggest Companies in america, but in North Carolina the governor has already signed a similar bill there, and as nbcs Janet Shamlian reports, he says hes not budging. Reporter the stakes were high. With georgias economic viability on the line, governor nathan diehl announced hed veto a controversial religious rights bill. I do not think that we have to discriminate against anyone to protect the Faithbased Community in georgia. Reporter legislation would have given businesses the right to deny Service Based on religious beliefs. Diehl argued the bill went too far. For weeks Major Companies like coke, apple and hilton criticized the bill, and hollywood heavyweights, which generate more than 6 billion in georgia, threatened to boycott. Comcast and nbc universal, our parent companies, also urged a veto. Tonight disney among those cheering the decision, saying we applaud governor diehl and look forward to continuing our Film Production in georgia. But some lawmakers have threatened to challenged the decision. That the clear will of the people of georgia is in support of this legislation. Reporter a similar battle playing out in North Carolina. Governor mccory, you have made a mess of our state. Reporter today a federal lawsuit filed over North Carolinas new law limiting protections for gay and transgender people. Like in georgia, major organizations like papal and the nba have led the backlash threatening to pull business. I dont agree with it. Reporter now, its North Carolinas governor on the hot seat. He says hes not backing down. And the common sense is not to have a government regulation telling business who they allow in what restroom. Reporter battle over gay rights and religious freedom tonight being fought one state at a time. Janet shamlian, nbc news, raleigh, North Carolina. And another big battle appears to be over. Theres late word of a Major Development in apples battle with the fbi. The Justice Department is now withdrawing its League Action that was intended to force apple to unlock an iphone used by one of the San Bernardino attackers. Nbcs Pete Williams joins us right now. Pete, why the turn about reporter because, lester, the Justice Department says tonight it has unlocked syed farooks iphone and extracted the data from it. Farooq left it behind in a car. Just a week ago the fbi said an outside party suggested a way to disable the phones security feature so it could be unlocked by repeatedly guessing the pass code so now theres no need to force apple to write software that would do the same thing, something that apple vigorously opposed saying that would jen ditz security of all iphones. The fbi wants to know if others were involved in the shooting. Officials tonight say the data extracted from the phone is encrypted and will take some time to decode and now the fbi faces a dilemma. The government generally tells the Tech Community when it finds a vulnerability like this but doing that could blend its usefulness in future cases. Lester . Pete williams, thank you. In the race for president republican frontrunner donald trump continues to fire shots at ted cruz and the feud over their wives but cruz today taking a new approach has tried to move beyond that nasty bat. Lets get more from nbcs hallie jackson. Reporter new week, same rivalry, now playing out on the radio. Joining me on the line reporter donald trump versus ted cruz. He started it. If he didnt start it, it never would have happened. Nothing like this would ever have happened. Reporter trump, upset about the that racy ad featuring a photo of his wife. He knew about it. Somebody even said hes the one who bought the cop writes from gq. Reporter the cruz team denies that and files show no payments from his campaign to british gq and cruz calls that a we are Conspiracy Theory even as the photographer who took the picture demand the group stops using it, and ignoring the back and forth, cruz refusing to engage. Who cares. Who cares what donald is tweeting late at night. We need Real Solutions for the real problems in this country. Reporter hes taking on trump not personally but on poll. I he has no idea how to keep america safe from radical islamic terrorists. So instead he yells and screams and curses and attacks people and threatens lawsuits and attacks their wives and attacks their families. Reporter campaigning through wisconsin cruz is talking National Security and so is trump with the washington post, still raising eyebrows after this last week. This was about isis. By the way, could i do one thing . This is a very good looking group of people. Could i just go around so i know who the hell im talking about. Sure. Reporter for these rivals the battleground now wisconsin where Governor Scott walker is set to make an endorsement announcement tomorrow. The states pistal primary just over a week away. Hallie jackson, nbc news, rothschild. Actor Robert De Niro has reversed ghors a highly controversial documentary film and the tribeca Film Festival will no longer feature a film which makes the debunked claim that vaccines cause autism. Nbcs kate snow reveals the change of heart. Reporter acting legend Robert De Niro and the tribeca festival made an unprecedented decision to pull the film. We were delight fwhaus was a film that purported and a descredited concept. Reporter de niro who has a child with autism said after conversations with experts they concluded we do not believe it contributes to or furthers the discussion i had happened for. The film vaxxed makes the allegation that centers for Disease Control knew that vaccines were causing autism. Everything ive been telling my patients for the last ten years has been based on a lie and a coverup. Reporter it was directed by andrew wakefield, the widely discredited researcher whose 1998 study in the british medical journal the lancet fueled fears about vaccines. The study was completely retracted and wakefield lost his medical license. In a statement about the film, wakefield said we have just witnessed yet another example of the power of corporate interests censoring free speech, art and truth, but at least 15 studies, including an analysis of more than 1. 25 million children, revealed no relationship between vaccination and autism. Vaccines are a distraction. They divert energy, time and scientists attention away from things that are more valuable to helping children and families affected by autism. Reporter tonight autism experts say they are relieved to see wakefields film pulled but frustrated hes still promoting debunked theories, misleading families desperate for answers. Kate snow, nbc news, new york. Theres a lot more to tell you about tonight, including a deadly mistake. A type of car system so many use to make life easier is also leading to lifethreatening situations. Also, the major announcement today this is joanne. Her long day as a hair stylist starts with shoulder pain when. Hey joanne, want to trade the all day relief of 2 aleve with 6 tylenol . Give up my 2 aleve for 6 tylenol . No thanks. For me. Its aleve. Feel free to be yourself all day. Just switch from denture paste to seabond denture adhesive seals. Holds stronger than the leading paste all day. Without the ooze. Feel secure. Be yourself. With stronger, clean seabond. Hey sweetie, how was your first week . Long. Itll get better. Im at the edward jones office, like sue suggested. Thanks for doing this, dad. 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Were often reminded about the need for every home in america to have a working am id alarm, but we rarely think the danger could come from our own garage. Now a warning from Safety Experts that keyless ignition systems so common in new cars today are leading to an increasing number of drivers who accidentally leave their cars running, filling their homes with deadly fumes. Heres nbcs tom costello. Reporter by her own admission, it was a careless almost deadly mistake. To see my son in my arms passed out from the lack of oxygen was a moment that i would never wish on anyone. Reporter constance bito had just returned home still dialed into a Conference Call from work, distracted enough that when she pulled into the garage she forgot to push the button to shut down the car engine. Over the next five hours as they slept Carbon Monoxide filled their apartment above the garage. Thankfully at 1 00 a. M. Her son parker awoke screaming from an intense headache and dizzy and stick constant decided to drive them to the sglopt when i opened the garage door thats when i got hit with the you can heist. Reporter another 20 minutes could be fate a. Its happened across the country. 21 deaths have been reported and 39 nonfatal poisonings and outside chicago the bodies of a husband and wife found by their son a fifther. Its not just older drivers that are making the mistakes. Were finding younger drivers are also make the mistakes. Reporter its an easy mistake to make especially if have you a key to be and theres no place to flung in. Pull into garage and hit the park button but forget theres one more button to push and thats the engine stop button. Ive got say ive done it myself. Safety advocates want an alarm or Software Patch to shut down unattended cars. At the end of the day what needs to happen is an automatic shutoff device. Reporter government safety regulators are studying the issue while the Auto Industry facing several lawsuits insists safety is a top priority and its working to further develop best practices though some carmakers have already added a fix. Constance is just glad she and parker learned to warn others. Tom costello, nbc news, washington. Were back in a moment with aweinspiring images and why a flight everhas a number. Olicy but not every Insurance Company understands the life behind it. For those whove served and the families that have supported them, we offer our best service in return. Usaa. We know what it means to serve. Get an insurance quote and see why 92 of our members plan to stay for life. Youre down with crestor. Alright now theres a way you can get crestor for 3. Adding crestor, along with diet, lowers bad cholesterol. Crestor is not for people with liver disease, or women who are nursing,pregnant, or may become pregnant. Tell your doctor all medicines you take. 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He made the announcement on twitter after reposting a story about Football Players committing to do the same as doctor studied the effects of concussion on brain disease. A flight warning is in effect for the enormous volcano eruption in alaskas elose islands the plume of ash began rights yesterday and is now as high as 37,000 feet. It stretches at least 400 miles per hour. The u. S. Geological survey has issued a red aviation warning, the highest alert for planes flying through that region. When we come back, a former navy s. E. A. L. On a new mission to break a highflying on a new mission to break a highflying when your type 2 diabetes numbers on a new mission to break a highflying arent moving in the right direction, it can be a burden. But what if you could wake up to lower blood sugar . Imagine loving your numbers. Discover oncedaily invokana®. With over 6 million prescriptions and counting, its the 1 prescribed sglt2 inhibitor that works to lower a1c. Invokana® is used along with diet and exercise to significantly lower blood sugar in adults with type 2 diabetes. Its a oncedaily pill that works around the clock. Heres how invokana® reduces the amount of sugar allowed back in to the body through the kidneys and sends some sugar out through the process of urination. And while its not for weight loss, it may help you lose weight. Invokana® can cause important side effects, including dehydration, which may cause you to feel dizzy, faint, lightheaded, or weak, especially when you stand up. Other side effects may include kidney problems, genital yeast infections, urinary tract infections, changes in urination, high potassium in the blood, increases in cholesterol, or risk of bone fracture. Do not take invokana® if you have severe kidney problems or are on dialysis. Stop taking and call your doctor right away if you experience symptoms such as rash, swelling, or difficulty breathing or swallowing. Tell your doctor about any medical conditions, medications you are taking, and if you have kidney or liver problems. Using invokana® with a sulfonylurea or insulin may increase risk of low blood sugar. Imagine life with a lower a1c. Are you loving your numbers . Theres only one invokana®. Ask your doctor about it by name. What backache . What sore wrist . What headache . Advil makes pain a distant memory. Nothing works faster stronger or longer what pain . Advil. Lergies with nasal congestion . Find fast relief behind the counter with claritind. [ upbeat music ] strut past that aisle for the allergy relief that starts working in as little as 30 minutes and contains the best oral decongestant. Live claritin clear, with claritind. Finally tonight, a retired navy s. E. A. L. Who has broken sky diving records is flying high once again for an important cause. His extreme jumps have raised more than 1,100,000, but his sights are set on a million. Nbcs Miguel Almaguer explains why the mission is so close to him in tonights making a difference report. Reporter andy stump, a retired navy s. E. A. L. , feels closest to those he lost as he soars through the heavens. Hes here for them. Its why he jumps. Its so hard to describe the loss of somebody that thats close to you thats not your family. As far as im concerned he was my family. Reporter in 2007 stump lost his best friend jason lewis in the line of duty. The pair trained together, became zales and then fout together and stood side by side in happy times. One of the things that i made a promise to jason is that i would always be around to take care of his family. Reporter navy s. E. A. L. Foundation helps jasons family, so stump wanted to help the organization. His goal raise 11 million on go fund me, the challenge, set a world record for the furthest distance flown in a wing suit. At 36,000 feet where the temperature is freezing and you need oxygen. Stump took the daring leap. Soaring to 18 miles and the record thinking of jason and other families like special ops chief brad kavner. My brother brad was my best friend. Reporter andrea lost her brother two years ago. The navy s. E. A. L. Foundation provides counseling, community and so much more. They promised that no one will ever be forgotten. Reporter stump is determined to keep raising money to honor other families like jasons. Im just going to keep going until we get to 1 million. In three, two, one. See ya. Reporter flying through the heavens, remembering those left and helping the families left behind. Miguel almaguer, nbc news, san diego. We wish him many happy landsings. That will do it for us on a monday night. Im lester holt. For all of us at nbc news, thank you for watching and goo d Janice Dickinson battling breast cancer. Her first interview, now on extra. Janice dickinsons courageous announcement. Just two weeks ago, i was diagnosed with breast cancer. How she discovered it, and why shes going public with her diagnosis. I am not going to let that define me. Hugh jackman to the rescue. New video as the star saves his son from a deadly rip tide. Do you know who that was in the rip . It was hugh jackman. Brad pitts paternity secret. The star who says brad almost fathered her baby. Plus, the first photo of ivanka trumps baby theodore. Nikkck can cannon on the ru hes dissing mariah in his new song. New pics in mariahs weekend with the twins. Lady gagas 30th birthday bash. Taylor swifts egg battle with her brother. New video inside Chrissy Teigens star packed baby shower, thrown by the kardashians. Plus, behind the scenes with Michael Strahan as