Healthy. Nightly news begins right now. Announcer from nbc news World Headquarters in new york, this is nbc nightly news with lester holt. Good evening. It virtually wiped apart of a texas town off the map. An industrial explosion so powerful, it killed 15 people and injured hundreds, leveled nearby homes, businesses and schools. And now today, three years later comes the stunning news that what many may have imagined all this time was a tragic accident was something else, a criminal act. Someone, officials announced today, set that fertilizer plant on fire, triggering a catastrophe of massive proportions. Now the question turns to who. Nbcs Janet Shamlian has late details from texas. Reporter this haunting video shows the moments of explosions. In the small town of west texas, a massive blast at the citys fertilizer plant. 15 people were killed, including a dozen first responders. 200 were hurt. Hundreds of buildings ripped apart, including houses, apartments, schools and a nursing home. More than three years later officials now say the fire ahead of that blast was intentionally set. A preventable criminal act. We came to the conclusion after we ruled out all reasonable accidental and natural causes. Reporter one of the largest investigations in atf history, three years and 400 interviews that have cost more than 2 million. And its ongoing. A 50,000 reward authorities hope will lead to an arrest. It is the most difficult type of determination to make. In other words, every little other piece of cause and origin has to be eliminated. Its very difficult and painstaking. Reporter initial findings by the u. S. Chemical safety board faulted the company for failing to prevent the fire. And regulatory groups were not identifying the hazard. Rubble and a crater 12 feet deep. Tonight with word it was no accident. Heart break for those trying to rebuild their lives. Anger at whoever caused this. Anger at kind of this bad timing that is happening. We were finally healing, and now were not. Reporter no closure, as the investigation raises only more questions. Janet shamlian, nbc news, houston. Theres late word of a new twist in the case after a deadly attack at a planned parenthood facility in colorado. The accused killer who has had several outbursts in the courtroom calling himself a warrior for the babies may now never face a trial. Nbcs Miguel Almaguer has details. Reporter robert deere never entered an official plea, but during his many outbursts in court lets let it all come out. Reporter he said he was guilty of a mass shooting at a planned parenthood in colorado springs. The shooting last november was carried on live television. A dramatic fivehour shootout that left nine wounded and three dead. Police say deere had an arsenal. Nine guns and a homemade bulletproof vest. When he was finally taken into custody, officers say deere is happy. Deere is so obviously incompetent that the judge ruling had no choice but to find him incapable of helping his lawyers. Reporter charged with 179 counts, deere will now be sent to a Mental Institution for treatment. Kill the babies, thats what planned parenthood does. Reporter in court documents, attorneys reveal a psychiatric evaluation for deere showed he was incompetent and delusional. If hes found to be competent, the Court Proceedings will go ahead. While hes incompetent, essentially the Court Proceedings are at a standstill. Reporter deere, whose mental status will be reviewed in august, at the end of todays hearing, yelling at the judge, filthy animal. Miguel almaguer, nbc news, los angeles. For a third consecutive night, a wide swath of this country is on alert for the threat of yet another tornado outbreak. 27 million are bracing for impact from north texas to indiana. Some in areas that have already been hit hard this week. Nbcs Gabe Gutierrez has more from the danger zone. Reporter today in tennessee, a flood emergency. Up to seven inches of rain pounded the county within hours, prompting water rescues. Bridge is completely out. People cannot get in or out. Reporter overnight, lightning burned down this strip mall. While missouri saw baseballsized hail. And in mayfield, kentucky, the cleanup is under way. Holy mackerel reporter after this tornado swept through. Injuring ten people and narrowly missing an elementary school. No matter what anybody can say, god was with us yesterday. I didnt think i was going to make it. Reporter gus barely survived, clinging to a tree outside his home. You cant rebuild lives. We got lucky. Reporter the damage in kentucky comes after days of wild weather. In oklahoma, this tornado upgraded today to an ef4, the strongest so far this year, with winds of up to 200 miles per hour. Rising air causing instability, combined with strong winds in various directions makes the atmosphere ripe for tornado outbreaks. Since saturday, there have been 47 twisters across a swath of the country. And its not over yet. The first of two areas is eastern missouri and illinois this evening, where tornadoes are possible. Then the focus shifts to texas and oklahoma after dark, where the biggest threat will be for hail. Reporter now, that threat comes as this area is still struggling to recover from mondays storms. Oklahomas governor has just declared 15 counties states of emergency. Lester, there is late word tonight of new tornado warnings just issued for communities in indiana. Boy, they cant catch a break. Gabe gutierrez, thank you. Tonight a Police Officer is being hailed as a hero after springing into action after a wild stabbing rampage in a mall in massachusetts. A man with a knife slashing people apparently at random and the officer off duty, but in the right place at the right time to stop the bloodshed from being much worse. Heres nbcs joe fryer. Reporter investigators want to know why the town of tauten became the site of a stabbing rampage that stretched from a quiet neighborhood to a mall packed with people. This appears to be an irrational series of actions. Reporter officials identified the attacker as 28yearold arthur de rosa. Authorities say he crashed his car, then broke into a home where he stabbed a mother and daughter who were eating dinner. Kathleen slaven was seriously injured and her 80yearold mother, patricia, died. Shes pretty much everybodys grandmother. Reporter he drove to the mall and rammed his honda into a macys and assaulting three women before stabbing two more people, including george heat, who was on a date with his wife rosemary. He jumped up and tried to grab the man so he wouldnt be able to stab anybody else. Reporter he was killed. He was my hero. He was my daily hero. He did everything for me. Reporter another hero, jimmy creed, the offduty deputy who shot and killed derosa. Derosa told relatives he was suicidal, and even checked himself into a hospital monday and left yesterday. He was a loving father, a caring friend. Everybody who knows him knows he was a great guy. Reporter Officials Say it appears his victims were chosen at random, that he did not know any of them. Three are the survivors are still in the hospital. Federal grand jury has indicted a white exPolice Officer on new charges in the killing of an unarmed africanamerican man. Michael slager already faced a state murder charge for appearing on cell phone video to gun down walter scott in South Carolina last year, as scott ran away. Now slager has pleaded not guilty to the new federal charges, including violating scotts civil rights. He remains free on bail. A new day, a new uproar in the race for president. Tonight its all about Donald Trumps taxes, not releasing them would be unprecedented in modern president ial politics, dating back decades. A new report suggests thats exactly what the candidate was planning to do. Now trump is pushing back, and mitt romney is weighing in. Wondering if trump is hiding something that he doesnt want voters to see. Nbcs Hallie Jackson has details. Reporter donald trump on defense today on taxes. For the first time, suggesting an ongoing irs audit may not be wrapped up before the general election. Telling the associated press, hell only release his returns when the audits over. Quote, nothing to learn from them. He says, now, not quite what he said before. I have no objection to certainly showing tax returns. Reporter trump may end up the First Major Party nominee in 40 years not to release his returns. Even though nothing would stop him from doing so during an audit, according to the irs. A point mitt romneys now making, calling trumps stance disqualifying, and suggesting there may be a bombshell. Trumps under fire from his own party on this topic, and on others, less than 24 hours before pivotal meetings with leaders on capitol hill. His fellow republicans divided on trumps positions on immigration reform, trade, entitlements. Combine that with the with all these incendiary comments. All these issues have obviously unsettled a lot of us. Reporter today new signs party unity may be hard to come by. House Speaker Paul Ryan meeting with members of congress who support trump. Sources in the room telling nbc news there was tension, arguing, the longer ryan waits to endorse trump, the more divided the party gets. So what is it that you need to hear from him at some point to fully endorse him . And is there a situation in which you wont. This is plenty of room for policy disputes in this party. Reporter sources close to ryan said the speaker wants to hear trumps broader views on conservative principles tomorrow, not harp on policies where they disagree, like trumps temporary muslim ban. Hallie jackson on capitol hill, thank you. Caught on camera, a very rare example of Queen Elizabeth not exactly minding her manners. We hardly ever hear the queen speak, let alone speak ill of anyone. Thats why its so unusual to hear her take offense and reveal what she really thinks in such a public way. Reporter a garden party in the rain, the queen pretty in pink with an umbrella to match. It was all very british. Until this. The 90yearold queen caught by the royal cameraman seeming to trash talk chinese officials who came for a state visit last year, in a way that only a monarch would. She called them rude. The comment sparking headlines for a rare breach of royal etiquette from the prim and proper queen. The golden rule is, the queen doesnt do politics. So when she says anything, or is heard to say anything remotely controversial, everybody starts leaping up and down. Reporter the chinese visit was meant to mark a new golden era between the two countries. The palace is now trying to smooth things over, with a statement saying, all parties worked closely, and the state visit was extremely successful. The Chinese Government called the visit a success, too. But ducked the question about the queens comment. And chinas censures blacking out the report on the bbc. A rare royal slipup. For once her majesty was not the queen of diplomacy. Kelly cobilla, london. What does healthy really mean . Sugary cereal can be sold as healthy, but things like salmon cannot. The big push for the fda to settle the argument in the shopping aisle. A big leap forward for what could be the future o i accept im not 22 i accept i do a shorter set these days. I even accept i have a higher risk of stroke due to afib, a type of irregular heartbeat not caused by a heart valve problem. But i wont play anything less than my best. So if theres Something Better than warfarin, im going for it. Eliquis. Eliquis reduced the risk of stroke better than warfarin, plus it had significantly less major bleeding than warfarin. Eliquis had both. Thats what i wanted to hear. Dont stop taking eliquis unless your doctor tells you to, as stopping increases your risk of having a stroke. Eliquis can cause serious and in rare cases fatal bleeding. Dont take eliquis if you have an artificial heart valve or abnormal bleeding. While taking eliquis, you may bruise more easily. And it may take longer than usual for any 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. I accept i dont play quite like i used to. But im still bringing my best. And going for eliquis. Reduced risk of stroke plus less major bleeding. Ask your doctor if switching to eliquis is right for you. If youre one of the millions of americans who try to eat healthy and prepare healthy meals for your family, youve probably wrestled with what is and is not healthy. Its not always easy to tell these days. The current fda definition of Healthy Eating were written 20 years ago, and a lot has changed since then. Now the feds are starting the process of redefining what healthy really means. Heres nbcs tom costello. Reporter how is it possible a sugary cereal could be considered healthy, but not almonds, avocados and salmon . Healthy eating has changed since the 1990s. When Healthy Foods had to meet five government criteria on fat, saturated fat, sodium, cholesterol and nutrients. At a whole foods in washington today, we met nutritionist katherine talmadge. We used to think sugary cereals were fine if they were fortified with vitamins and minerals. Reporter now the fda is beginning the process of redefining what healthy means. A food economist at cornell the simpler we can make it, the way we can make it easy and accessible for the consumer, the more it ends up doing some good. Reporter 25 years ago the focus was on a lowfat diet. But weve since learned some fats are actually good for you. And trans fats are now bad. Despite what the old guidelines say, we now know that almonds, salmon and avocados are healthy. But that glass of orange juice we thought was healthy could be loaded with sugar. The turkey delta sandwich likely coming with lots of salt, and muffins, lots of sugar. For years the fda has also been under pressure to define what a natural food is, but in fact, there is no standard. With no standards and no verification in place, that label can pretty much mean what any manufacturer or Company Wants it to mean. Reporter now defining what is natural and what is healthy is getting a 21st century makeover. Tom costello, nbc news, washington. Were back in a moment with a rush to rescue a family moment with a rush to rescue a family trapped in an and im still struggling with my diabetes. I do my best to manage. But its hard to keep up with it. Your body and your diabetes change over time. Your treatment plan may too. Know your options. Oncedaily toujeo® is a longacting insulin from the makers of lantus®. It releases slowly to provide consistent insulin levels for a full 24 hours. Toujeo® also provides proven full 24hour blood sugar control and significant a1c reduction. Toujeo® is a longacting, manmade insulin used to control high blood sugar in adults with diabetes. It contains 3 times as much insulin in 1 milliliter as standard insulin. Dont use toujeo® to treat diabetic ketoacidosis, during episodes of low blood sugar, or if youre allergic to insulin. Allergic reaction may occur and may be life threatening. Dont reuse needles or share insulin pens, even if the needle has been changed. The most common side effect is low blood sugar, which can be serious and life threatening. It may cause shaking, sweating, fast heartbeat, and blurred vision. Check your blood sugar levels daily while using toujeo®. Injection site reactions may occur. Dont change your dose or type of insulin without talking to your doctor. Tell your doctor if you take other medicines and about all your medical conditions. Insulins, including toujeo, in combination with tzds thiazolidinediones may cause serious side effects like Heart Failure that can lead to death, even if youve never had Heart Failure before. Dont dilute or mix toujeo® with other insulins or solutions as it may not work as intended and you may lose blood sugar control, which could be serious. Pay no more than 15 per prescription for 12 months. Eligibility restrictions apply. Learn more at toujeo. Com info or call 8005803421. Also, 9 out of 10 Medicare Part d patients can get toujeo® at the lowest branded copay. Ask your doctor about the proven full 24hour blood sugar control of toujeo®. Unless you have allergies. Flonase is the first and only nasal spray approved to relieve both itchy, watery eyes and congestion. No other nasal allergy spray can say that. Go ahead, embrace those beautiful moments. Flonase changes everything. Back now with a brandnew look at what could be the future of travel. Getting from place to place much quicker than we do now. Its called hyperloop. And the inspiration behind it is the man behind space x, and tesla. The vision is, it will be up and running in five years. And nbcs Gadi Schwartz takes us inside the race to make it happen. Three, two, one reporter a blur across the desert, 102 seconds, the first step in shuttling 100 people a day at the speed of sound. All of that happened on purpose. That was really great. Reporter today Hyperloop One tested its propulsion system responding to a call by elon musk for a highspeed super tube by 2020. The h capable of zipping from places like l. A. To San Francisco in half an hour. The next step for Hyperloop One is take a twomile long stretch of tube and build a testing ground here in the nevada desert and hope to have it unveiled by the end of the year. Other companies are also working on alternate designs using air lock tubes, magnets and levitation to more than triple the speed of the worlds fastest bullet train. But skeptics ask about high costs, land rights, and is it safe in an earthquake zone. It takes at least five years. You talk about the detailed design. I think five years from now is laughable. Reporter and how about those who may be scared of zooming 760 miles an hour through a vacuum in a windowless capsule. While were in that environment, it should be as smooth as an elevator ride. Reporter but dreamers dont see obstacles, rather an opportunity to introduce an entirely new way to travel. Gadi schwartz, nbc news, las vegas. Looks like it would be quite the ride. Until the hyperloop gets here, well still be getting around like this. A family in uber in San Francisco, the suv balances over a sinkhole. Police told them not to move, to prevent from tipping into the sinkhole. Rescuers were able to pull them out. An ordeal one. Passengers called trer fig. I think wed all agree. When we come back, getting by with a little help from your virtual friend. How an online woman its been a journey to get where i am. And i didnt get here alone. There were people who listened along the way. People who gave me options. Kept me on track. And through it all, my retirement never got left behind. So today, im prepared for anything we may want tomorrow to be. Every someday needs a plan. Lets talk about your old 401 k today. If you have afib not caused by a heart valve problem, pradaxa helps stop blood cells from pooling in the heart. Forming a clot. Which can travel to the brain and cause a stroke. Pradaxa was better than warfarin at reducing stroke risk in a study. In the rare event of an emergency, pradaxa has a specific reversal treatment to help you clot normally again. Pradaxa is not for people who have had a heart valve replacement. Dont stop taking pradaxa without talking to your doctor. Stopping increases your risk of stroke or blood clots. Ask your doctor if you need to stop pradaxa before any planned medical or dental procedure. Pradaxa can cause serious, and sometimes, fatal bleeding. Dont take pradaxa if you have abnormal bleeding. And seek immediate medical care for unexpected signs of bleeding, like unusual bruising. Pradaxa may increase your bleeding risk if youre 75 or older, have kidney problems, stomach ulcers, a bleeding condition, or take certain medicines. Side effects with pradaxa can include indigestion, stomach pain, upset or burning. Ask your doctor about pradaxa. And its specific reversal treatment. What backache . What sore wrist . What headache . Advil makes pain a distant memory. Nothing works faster stronger or longer what pain . Advil. Houston for those whove missgone to extremespe. To escape their unrelenting nasal allergy symptoms. Houston news alert. New from the makers of claritin, clarispray. Welcome back. Clarispray is a nasal allergy spray that contains the 1 prescribed, clinically proven ingredient. Nothing is more effective at relieving your sneezing, runny nose and nasal congestion. Return to the world with new clarispray. Finally tonight, an eye opening look how your mood can impact your health. When one woman got some of the worst news of her life, she created an Online Support community and its having big benefits in the real world. Nbcs erica hill has tonights make a difference. Reporter kate is a busy mother of two, running a startup, a life she never imagined nine years ago. When first diagnosed with multiple sclerosis. When i was diagnosed, theres just such a moment of mortality. Reporter the disease can ultimately rob a person of the ability to walk, or speak. All i wanted was to find one moment from someones true Life Experience that where i could connect. And i couldnt find that. Reporter a video producer, she began documenting and sharing her journey online. There seems to be a weird cyclical thing happening within my body. Just feeling really bad. I was Walking Around with extreme neck pain, frozen face. What did those moments that you put out there do for other people . The initial feeling was such a sense of relief for people. Of, wow, something about your story really made me feel like i wasnt alone. Reporter she launched my counterpain, an online story telling community. Its not just ms. Reporter entries tagged with a date and a mood. 11 emotions ranging from happy to determined, guilty to scared. Creating an instant snapshot of a persons journey. Neuropsych trist adam caplan found this community improved some peoples outlooks and even their health. I was completely blown away. We saw an enormous increase in peoples purpose in life. The whole feeling of taking your energy out of yourself and putting it somewhere else, makes you feel differently. Reporter she believes that purpose is keeping her ms at bay. Inspiring her to create more counterpain communities. Erica hill, nbc news, bronxville, new york. That will do it for us on this wednesday night. Im lester holt. For all of us here at nbc a man detained at her new york doorstep. What was in his duffel bag now on extra. Taylor swift targeted at home by a suspected stalker. Breaking new details. What cops found when they busted the man and how close he he got the superstar. George and julia in cannes opening up about their carpool car yolk we ken. Why dont you do Carpool Karaoke . Were terrible singers is this her first time in cannes . Why it took her so long to get here . You have george with you. What could go wrong . Ozzy osbournes secret double life. Sharon osbourne put a p. I. On ozzy and what she uncovered. Is ben trying to get jen back . Legendary Designer Tommy Hilfiger opening up about his Daughters Health nightmare. I thought maybe my daughter had gone a bit psychotic. There were a lot of times if i wondered if my physical symptoms werent real. Their 20year journey to solve the medical mystery. Plus congratulations, by the way. New dad, ryan gosling, Russell Crowe and their