Nightly news begins right now. Announcer this is nbc nightly news, reporting tonight from los angeles, lester holt. Good evening. In a sign of growing worry over the threat of isisinspired attacks in this country, the military has ordered u. S. Military operations here at home to raise their security level for First Time Since the tenth anniversary of 9 11. While the fbi tonight is alerting its field offices to take a closer look at potential extremists on their radar. The actions come amid increasing anxiety over the potential threat from home grown terrorists on the heels of that terrorist shooting attack on a gathering in texas last weekend. Jim miklaszewski has late details from the pentagon. Reporter the urgent warning shot out across the u. S. Overnight, ordering more than 3,000 military bases and sites in the u. S. To raise the terrorist threat warning to force protection bravo. Bravo is in the middle of five threat levels and indicates an increased or more predictable threat of terrorist activity and requires such security measures as an increase in i. D. Checks and vehicle searches. Defense and military officials tell nbc news while there is no specific or credible threat there is concern that recruiting stations may be targeted. And there have been serious warnings. They point to last weekends shootout in garland, texas, where two isisinspired gunmen were shot and killed in a failed terrorist attack. And the startling warning from fbi director james comey that there are potentially thousands more isisinspired terrorists in the u. S. Thursday comey told reporters, its almost as if there is a devil sitting on the shoulder saying kill kill kill kill all day long and that hes concerned isis is focusing on the uniform military and law enforcement. And today, an urgent directive from the fbi, because one of the texas gunmen elton simpson, was known to authorities, but not under surveillance. The fbi ordered its field offices to review the list of all suspects and decide whether the right ones are being tracked. The alarming increase in the terrorist threat here at home is the result of isis skillful use of social media to recruit potential terrorists inside the u. S. As long as you have isis supporters around the world, thousands of them you know issuing almost 100,000 tweets a day, that just guarantees that it is propaganda will remain in cyberspace without containment. Reporter it is not clear just how long this bravo threat level will last. But officials here are warning that these kinds of security measures could become the new normal because the new evolving terrorist threat is not going away anytime soon. Lester . Jim miklaszewski at the pentagon thank you. Another major story were following as we come on the air is the weather. Forecasters warning of another major tornado outbreak tonight. Our partners at the Weather Channel say there say 70 chance of a major destructive tornado hitting this weekend. Several states are on alert, with reported tornadoes on the ground already. Nbcs Janet Shamlian is in Tornado Alley for us tonight. Reporter for a second night, tornadoes blazed a trail of destruction. This view from a storm shelter in oklahoma. At least three tornadoes in texas, strong winds blamed for this Train Derailment 17 cars blown off the tracks. Oh my god, a fire. Reporter lightning triggered a massive gas well explosion in north texas flooding travelers at the airport and in the panhandle, some drivers hit the road despite the storm risk. Im afraid the worst is still to come. Reporter new warnings today. Big time weather on the way for oklahoma. Reporter as homeowners in kansas and oklahoma rush to repair their homes do what needs to be done. Reporter amid reports that saturday could be even worse. Just lost everything i own and trying to get it out of here before the next storm comes. Reporter the university of oklahoma announcing it will move tonights commencement indoors. Every night when we go to sleep, we see the storm. I can hear the sounds of the tornado when we sleep. Reporter katie and her family had to be rescued when debris trapped them in their underground storm shelter. Now, shes worried about whats to come. We already have been hit, why are we going to get hit again . Reporter tonight, as Severe Weather is set to strike again, moments like this. 5yearold dawson collecting bricks from his fallen home promising his mom for mothers day he will build her a new one. Amid the destruction of just two days ago, right now in Oklahoma City we are under a Severe Thunderstorm Warning and a flash flood warning. In fact there are storms all around us right now. Theyre going to close this trailer park a little bit later, but for now, people are still here because this is their home. They dont want to leave, but they know they have to. Theyre trying to salvage what they can and then get out. Lester back to you. Janet, there is a lot of weather anxiety tonight. In fact another major weather event happening now, but were following Tropical Storm warnings up for the carolina coast, very unusual for a named storm so early in this season as ana is churning to shore. Millions bracing for heavy rains and flooding damaging winds and dangerous rip currents. A live look at myrtle beach where the waves are kicking up choppy waters, a sign the storm is getting closer. Lets go right to nbc meteorologist dylan dreyer at the command post inside the National Weather service Storm Prediction Center in oklahoma where shes monitoring both of the weather events. Dylan, whats happening there . Lester we have spent the day at the National Weather center here. This is the home of the Storm Prediction Center and also the local Forecasting Office for most of oklahoma and northern texas. It is right here in this room where the tornado warnings and Severe Thunderstorm Warnings have been issued. We even have ourselves under a Severe Thunderstorm Warning at this time with baseballsized hail reported just to the west of this Forecasting Office. Now, we are looking at this severe thunderstorm and the most dangerous storms across parts of southwestern oak oak and northern texas. This is going to be the threat through the night tonight. Now, on saturday it extends into kansas oklahoma and a small portion of texas. On sunday, were going to lose the threat of a Severe Weather outbreak but will see the chance of strong storms from iowa all the way back down to texas. I also want to point out quickly, subTropical Storm ana is stationary right now, with 45mileperhour win winds, but the outer bands could produce 4 to 5 inches of rain across the coast, especially of north and south carolina. So were going to focus on that over the next couple of days and also here it is going to be a busy night, but an even busier weekend. Lester . Dylan dreyer thanks. A tragic accident on a busy highway in atlanta where a small plane crash, crash landed killing all four people on board and started an intense fire. Single engine plane ran into trouble after takeoff. As it tried to land it grazed the top of a tractor trailer truck. Witnesses say the fire prevented anyone from helping the passengers in the wreckage. They were flying to mississippi to attend a family members graduation from college. The Justice Department announced today it is launching a civil rights investigation of a Baltimore Police department that will go well beyond the death of freddie gray in Police Custody last month. We get more from our justice correspondent pete williams. Reporter after 25yearold freddie gray died from a spinal cord injury in the custody of Baltimore Police touching off days of peaceful protest and nights of unrest and prompting a visit from the newly sworn in attorney general loretta lynch, today she said there has been a serious erosion of public trust, and ordered a civil rights investigation of the entire police department. This investigation will begin immediately. And will focus on allegations that Baltimore PoliceDepartment Officers used excessive force, including deadly force, conduct unlawful searches seizures and arrests, and engage in discriminatory policing. Reporter investigators will ride along with police on the beat interview officers and Community Leaders and analyze records of whos been arrested and for what. The news was welcomed by city leaders. The police union and the lawyer for freddie grays family. The federal government has enormous additional powers than State Government has. It has both the carrot and the stick. Reporter in the past six years, the Justice Department has opened investigations or is enforcing Court Ordered changes in 32 Police Departments and sheriff offices in 18 states. Baltimores police say they too welcome the investigation, but if they decline to make the recommended changes, the government can get a court to order them to do it. Pete williams nbc news at the Justice Department. And there was a poignant reminder today of the dangers faced every day by Police Officers all across this country as a young new York City Police officer was laid to rest six days after he was shot in the line of duty. His funeral brought together a huge gathering of fellow officers. Nbcs ron allen has that story tonight. Reporter a somber sea of blue near new york city tens of thousands of police from across the nation paying their respects to officer brian moore, just 25 from a family of cops shot and killed last saturday when he stopped a man suspected of carrying a gun, a suspect now charged with murder. The third nypd officer to give his life in five months. At a time when police here and nationally face criticism and protesters on the streets that new yorks Police Commissioner said fails to appreciate the work of officers like moore. We cannot be defined by that criticism. Because what is lost in the shouting and the rhetoric is the context of what we do. Reporter he promoted officer moore posthumously to detective. They called him a hero and a rising star so determined to be a Police Officer like his dad, he passed the exam when he was just 17. Young man lost mourners say, who lived and died blue. Ron allen, nbc news new york. Meantime tonight, as the public argument rages over whether and how he should be punished, tom brady has spoken for first time about an investigators report that concluded brady probably knew that new England Patriots employees had a role in deflating footballs. He made the comments last night at an event in front of a hometown crowd, but he didnt exactly have a direct response. I dont have really any reaction. It only has been 30 hours, so i havent had much time to digest it fully, but when i do, ill be sure to let you know how i feel about it. And everybody else. No word yet from the nfl on when any possible punishment would be announced. Overseas tonight, in great britain, the Election Results are in. And they are a surprise to almost everyone. Prime minister David Cameron and his conservative party won a decisive victory, trouncing the opposition labor party, despite preelection polls that predicted a dead heat. More positive news for the u. S. Economy tonight, employers adding 223,000 jobs last month. The Unemployment Rate has dropped to 5. 4 the lowest since the spring of 2008. That prompted a big day on wall street. Stocks posting their biggest gains in two months. The dow finishing up 267 points. Nasdaq and s p up as well. Still ahead here tonight, new developments in an infamous murder mystery. What happened to etan patz all these years later, a man on trial and a weeks long battle in the jury room. Also the air war in california. Critical mission in the sky where with a woman breaking barriers on the front lines. In the sky with a allergies can distract you. So when your symptoms start, doctors recommend taking nondrowsy claritin every day of your allergy season. 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If its severe stop taking linzess and call your doctor right away. Other side effects include, gas, stomacharea pain and swelling. Bottom line, ask your doctor about linzess today. In new york one of the countrys most agonizing missing children cases remains unresolved tonight after a judge declared a mistrial in the case of a man accused of abducting and killing 6yearold etan patz back in 1979. Our report tonight from nbcs anne thompson. Reporter stan patz and his family have been waiting for justice for more than 30 years. Today they were told they would have to wait even longer. This man did it. He said it. How many times does a man have to confess before someone believes him . Reporter Pedro Hernandez was on trial for the murder of their 6yearold son etan one of the first missing children to appear on a milk carton. After 18 days of deliberation and three times telling the judge they were hopelessly deadlocked the jury was dismissed and a mistrial declared. Etan simply disappeared. Reporter on may 25th, 1979 etan patz left his home in new york citys soho neighborhood to catch a school bus. A twoblock walk. It was the 6yearolds first time doing it by himself. Soho was a grittier place back then. The bus stop is no longer here. Neither is the Grocery Store where 18yearold hernandez worked as a clerk, where he says he took etan into the basement and killed him. Etan was a beautiful, outgoing friendly curious little kid. He would have made a great adult. But thats what got him killed. Reporter so the boys body was never found, hernandez confessed several times to killing etan. Something just took over me and i just choked him. Reporter but the defense claimed hernandez is mentally ill, his confession is not credible and pointed to convicted child molester jose ramos as the possible murderer. In the end, the jury voted 111 to convict. Adam juror number 11 was the holdout. For me his confession was very bizarre and i could not get beyond reasonable doubt. Reporter prosecutors have indicated they will seek a new trial, hernandez will remain in custody. And the decades old question of who killed etan patz remains unanswered. Anne thompson nbc news new york. Up next here tonight, the major fire fight under way and a woman breaking new ground from the air. We live in a world of mobile technology, but it is not the device that is mobile, it is you. Real madrid have about 450 million fans. Were trying to give them all the feeling of being at the stadium. The microsoft cloud gives us the scalability to communicate exactly the content that people want to see. It will help people connect to their passion of living real madrid. music boys . Stop less. Go more. The passat tdi clean diesel with up to 814 hwy miles per tank. Just one reason volkswagen is the 1 selling diesel car brand in america. Working on my feet all day gave me pain here. In my knees. 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Secretary of state kerry laid a wreath in paris. Queen elizabeth lit a beacon in london. And in washington a spectacular flyover, the greatest gathering of world war ii aircraft since the war itself. 56 vintage planes and hundreds of veterans there to see it. Here in california firefighters have battled more than 1100 wildfires this year twice as many as they would normally see by now. And the dangerous fire season has just begun. Well thousands of crews fight these potentially deadly blazes from the ground only a handful do so from the air in the states cal fire helicopters. Nbcs Hallie Jackson got a birdseye view from one pilot who is breaking new ground. Reporter this is a very intense fire. This is just the beginning, an explosive start to a season that is already worse than usual, flames ripping through more than 4,000 acres so far. Choppers racing to put reinforcements on the ground piloted by people like desiree fortin. It is a hard job to do and a hard one to get. Shes one of just 20 full time state helicopter pilots and the first female. This is my dream job. And this is something ive been working for my whole career. Reporter fortin and her crew are cal fires first line of defense. She can drop her firefighters off on almost any kind of terrain, giving them the best chance to knock down a fire before it spreads. Thats critical in california where the drought has turned trees into tinder. With new predictions well see faster fiercer fires this year already 2600 firefighters have been called in weeks earlier than usual. Constant training even for marines. It is like a war and horton is flying above the front lines. If i was scared i shouldnt be doing this job in my mind. We all had moments where we think, you know well that was close. Reporter it is dangerous work high risk and high reward. When flames tore through the trees behind mark davis house in 2013 he tried everything to stop them. A losing battle until suddenly backup from horton. On the davis street th save their home. You realize what youre doing makes a huge difference. The difference potentially, between the untouched and the unrecognizable. And cal fires chief told me today the conditions right now are worse than they were last year so fires could spread faster than ever. Their new warning tonight, lester get ready. Could be a very long s Hallie Jackson, thank you very much. A bizarre smuggling case. Authorities noticed a young woman with a wheeled suitcase acting suspiciously and when they put the bag through an xray machine she discovered an 8yearold boy was curled up inside. There is the image. He told them he was from the ivory coast, and was placed in the care of Child Protection services. The woman identified as a Moroccan National was apparently trying to smuggle the boy to spain. When we come back love letters to mom. Frustrated with your Overactive Bladder medicine not working . Cant handle the side effects . 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Reporter diligent dutiful, the students in the second grade class at the Ascension School in manhattan are working on their mothers day project. I think of mom when i meet smart people. She is a warrior so she has must be really smart. I think of mom when i smell cooking. Rice and beans is our favorite. I think of mom with love on mothers day. I love her very much. Reporter the real lesson this week what it means to be thoughtful. I love my mom because shes always there for me. She keeps me safe and shes very caring. Reporter what we say, how we say it especially on mothers day, really matters, for kids of any age, it is hard to find just the right words. This one says a mother is someone who can take the place of all others, but whose place no one else can take. And thats her. Reporter and if your relationship with your mother is complicated i ended up with one, and this is what she would say, i dont give a rats [ bleep ] if you dont want to eat the peas eat the peas. Reporter in the class, the tone was more poetic. Do you love your mom . So much. Reporter really . Mmhmm. Reporter what do you think about when you think of your mom . Well i think i think about rose garden. Reporter why . Because theyre sweet like her. Reporter while we all wish we could be as eloquent as daniel the truth is most moms we know would be satisfied with this. Happy mothers day, mom reporter harry smith, nbc news new york. Our sentiments exactly. Thats going to do it for us on this friday night. Im lester holt reporting from los angeles. For all of us at nbc news, thank you for watching. And good night. Watching and good night. Lights camera access. How are you helping with your mom . It was kind of love at first sight. She has really sat back and hasnt said anything. With kim opening up more than ever what were about to see from bruce and