Would your boss do this . Nightly news begins right now. Announcer from nbc news World Headquarters in new york, this is nbc nightly news with lester holt. Good evening. Right now, we are monitoring a massive and dangerous storm system poised to bring Severe Weather to millions from north texas into nebraska. Tornado watches are posted in four states with people in the path braced for hail, and violent winds. This system more potent than many others that have pounded the region this spring, and could intensify during the night. Nbcs Miguel Almaguer is in the storm zone with the latest. Reporter this is the leading edge of a monster storm system threatening 53 Million People tonight. In the danger zone, the forecast calls for a wild mix. Baseballsized hail. Scattered lightning. Powerful winds, up to 80 miles per hour. Conditions right for tornadoes. At the kansas city airport, it turned ugly early. Thunder, lightning and hail. Day turned to night across missouri. Downpours and winds causing problems. That is a wall of water right now. Reporter in oklahoma city, they are watching the sky for twisters like this. The state Emergency OperationsCenter Warning of explosive tornadoes tonight. Schools, businesses closing early, Car Dealerships hauling their inventory to covered garages. They told us to expect up to baseballsized hail. Thats why weve chosen to move them all indoors. Reporter Tornado Alley has already been hammered, homes ripped apart, lightning sparking house fires. Tonight, a 70,000 square mile area stretching from texas to nebraska in the bullseye. This is a classic severe setup. You have this dip in the jet stream thats going to dig into the central plains. As it does so, it changes the winds at Different Levels in the atmosphere. This causes significant large tornadoes and very large hail. Reporter a dangerous night ahead for tens of millions in the plains. Tonight here in oklahoma city, where it is warm and humid, the skies are getting darker, and the wind speeds are picking up. Supercells have been spotted on the radar. Photographers S Forecasters say it will get sporty all across this region. Lester . All right, Miguel Almaguer, thank you. It is a big night in the race for president. Donald trump aiming for a sweep of cruz and kasich in five states up for grabs tonight, hoping to deal another big blow to the socalled stop trump movement. Theres drama with the democrats with a report that Bernie Sanders is preparing to reassess his campaign strategy. And the campaign pushing back. Weve got it all covered as we await the poll closings, starting with nbcs katy tur at trump tower. Katy, whats the mood there . Reporter good evening, lester. A Senior Source tells me if all goes as planned, by next week the Trump Campaign will be running a general Election Campaign regardless of whether ted cruz or john kasich are still in this race. But first, they have to get through tonight. And expectations are high. Donald trump racing up the i95 corridor, his sights on the general election. Hes about to get closer, expected to sweep all five states voting tonight. But the biggest prize . 54 Party Activists in pennsylvania, chosen about i voters today to be the states free agents at the gop convention. You have to get your beautiful delegate card and you have to vote for your delegates. The delegates. Its crazy. Reporter unbound delegates who can vote for whichever candidate they want and change their mind whenever they want, regardless of how their district votes. They are 54 highly coveted and potentially crucial votes that could decide who gets the nomination. Are these are go of them. Theres a definitely possibility that ill make a decision for the nomination. Its not about power. Its mostly about trying to make the right decision. Reporter if trump runs the table tonight and then wins in indiana next week, his path to 1,237 gets a lot easier. Which is why ted cruz and john kasich are teaming up in indiana, kasich leaving the state to bolster cruz. But the pair fumbling their alliance about as quickly as they formed it. The people in indiana who are watching this program right now, your message come primary day there is to vote for look, im not getting into that, matt. Things are not so plain and simple. I dont tell my voters what to do. First of all, i dont have voters. Reporter that strategy not going over well with kasich supporters. I dont think we care for trump, but i dont care for the game either. Reporter katy tur, nbc news, new york. There is andrea mitchell, anticipating big wins tonight, Hillary Clinton already in indiana, turning her attention to donald trump. Im just bewildered when i hear the republican frontrunner, donald trump, actually say that wages are too high in america. Reporter but Bernie Sanders campaign is not letting up. Jane sanders quickly rebutting a New York Times report, quoting a Senior Adviser saying they will reassess strategy after tonight. Were not talking about reassessing anything. Reporter and Bernie Sanders emphasizing to me hes not going anywhere. Were in this race until the last vote is cast. Reporter even emailing a fundraising appeal, shoelg the clintons all smiles with the trumps at their wedding. I am winning. If youre ahead in the vote i am ahead in the vote. I am winning. Reporter but sanders is hearing a different message. I voted for you. Thank you very much. I got at least one vote, right . Reporter Hillary Clinton said im winning. Well, i think youve got to count the votes before you make that declaration. A little too overconfident . A little too over. There are five contests today. We think were going to do just fine. Reporter and donald trump trying to make trouble for the democrats tweeting that sanders has been treated badly and he should run as an independent. The Sanders Campaign saying thats not going to happen. Hes going to support the nominee. Hillary clinton still in indiana, but heading this way for what she hopes will be a victory celebration. Critical new clues coming to light in the shocking mass murder of eight family members in rural ohio. As the urgent manhunt continues for a fifth night, officials reveal that some of the victims showed signs of a struggle before they were killed. Nbcs Gabe Gutierrez has the latest. Reporter with investigators from across the state working around the clock, tonight preliminary autopsy results are shedding new light on the brutality of this stunning murders that have shaken pike county, ohio. One of the eight victims shot nine times, two victims shot five times. Only one was shot once. Some showed signs of bruising indicating a struggle. I think were likely looking at multiple shooters based on a variety of issues here. Multiple shots indicates somebody whos angry, somebody perhaps with a score to settle. Reporter the motive still a mystery, but a Law Enforcement official tells nbc news the size of marijuana grows found at three of the four crime scenes suggest they were not for personal use. In another twist, the Attorney Generals Office con firms investigators have found cages consistent with rooster breeding and possible cock fighting. Samantha is mourning 16yearold Christopher Rhoden jr. I dont know what chris could have done. He never deserved this. Reporter at the pizza parlor, another victim, dana, used to visit with her children. Ill really miss dana. Reporter owner Sally Mcdonald has started a Memorial Fund to help pay for at least some of the eight funerals. It breaks my heart. Something, you know, Something Like this, just doesnt happen in our community. Reporter tonight authorities wont say whether they have any suspects, but are cautioning that the largest Murder Investigation in recent memory will be lengthy. Theres a new twist following the sudden death of prince. His sister says prince had no will, and now there could be a battle brewing over his giant fortune, and the rights to his music catalog. Nbcs joe fryer with new details. Reporter five days after princes death, a mystery now hangs over his estate. In court papers filed today, his sister says, i do not know of the existence of a will. Prince had no wife or children, and both parents have died. So if he had no will, under minnesota law his siblings are next in line. It will be divided into as many shares as there are siblings, half or full. Reporter his only fullblooded sibling, but he also had half siblings still alive. Two other half siblings passed away. Tykea was also a musician and one of her publicists said she and prince spoke publicly, but made a pact not to bother each other when it came to their careers. No details on the values of princes assets. His worth is put at 300 million. It is surprising that somebody with that large of an estate does not have a plan. Reporter many are wondering what the future holds for princes home and studio paisley park. Friends say he wanted it to become a museum for fans. Musicians who work with prince believe he also had a lot of unheard music locked in a vault. Probably 70 of the orchestral backgrounds that we provided for prince are on songs that remain unreleased to this day. Reporter for now, princes sister is asking the court to appoint someone to oversee the estate while things are sorted out. Princes reps have not commented on todays court filing. Joe fryer, nbc news, minnesota. Nearly seven months after the cargo ship el faro was lost in a hurricane at sea, the ntsb said they found the data recorder 15,000 feet below the surface. Tom costello reports investigators are hoping this discovery could fill in some critical blanks about a risky voyage. Reporter there on the ocean floor, el faros missing data recorder. Sitting amid the wreckage 41 miles northeast of the bahamas. El farrow was sailing in a Tropical Storm when it suddenly lost power. Dead in the water as the Tropical Storm turned into hurricane joaquin. El farro had taken on water, and was listing at 15 degrees. Reporter over six days of searching, teams found debris floating on the surface, but none of the 33 crew members survived. Meanwhile, in jacksonville last october, outraged that the crew ever left port in the face of a monster storm. You have got to be kidding. You on a suicide mission. You never should sail through those waters, period. Reporter a month later using underwater cameras, the wreckage was finally confirmed in 15,000 feet of water, three miles down. The ships owner tote marine said it would never endanger a crew to meet a schedule. But tote is now facing multiple lawsuits from family members. The next step for recovery teams actually bringing the data recorder to the surface. Its about the size of a basketball, capable of recording conversations on the ships bridge. Conversations that could provide clues into the sequence of events that led to elfarrow sinking. Apple reported today its first decline in quarter lerl sales in over a decade. Because of a slump in iphone sales. Though it snapped 13 years of continuous quarterly growth, apple still remains a major force. Still ahead tonight, treating children with adhd. Millions are diagnosed, but now experts are telling parents there may be a much more effective approach. Well tell you about it. Also, kelly ripa returns to tv after days of controversy, returns to tv after days of controversy, and s it takes a lot of work. To run this business. Returns to tv after days of controversy, and s but i really love it. Im on the move all day long. And sometimes, i just dont eat the way i should. So i drink boost® to get the nutrition that im missing. Boost complete nutritional drink has 26 essential vitamins and minerals, including calcium and vitamin d to support strong bones and 10 grams of protein to help maintain muscle. All with a great taste. I dont plan on slowing down any time soon. Stay strong. Stay active with boost®. Cant afford to let heartburn get in the way . Try nexium 24hr, the 1 selling brand for frequent heartburn. Get complete protection with the leader in frequent heartburn. Thats nexium level protection. One of many pieces in my i havlife. Hma. So when my asthma symptoms kept coming back on my longterm control medicine. 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See if youre eligible for 12 months free at mybreo. Com. Theres Important News for parents of children diagnosed with adhd. A new study found that kids who receive behavioral therapy before medication fared much better in their development. As nbcs Kristen Dahlgren tells us, doctors say this could mean big changes for the way adhd is treated in this country. Reporter from the beginning, 6yearold christian had energy to spare. He was almost like a whirlwind. Reporter which wasnt easy on the parents. It was always yelling, yelling at him, him yelling at us, us yelling at each other. Reporter when it started causing problems in school, christian was diagnosed with attention deficit hyperactivity disorder, or adhd, usually treated first with medication. I really felt like it was no way i was going to put my son on medication. Reporter his therapist recommended starting with behavioral therapy. Instead of focused on stop, christian, stop doing that, youre looking for him to catch him being good. Reporter a new approach meant for pre and Elementary School age children includes praising the child for things like being polite, following directions, and controlling their body. High five. Reporter maybe dozens of times an hour. Good job. He was pretty much life changing. Do you like school, or no. Yeah. Reporter new research agrees. In a study thats the first to show the order of treatment matters. Children who began with behavioral m modification did better than those started on medication. You see a quick turnaround in the climate of the relationship between the parents and the child. Reporter which leaves behind the purely biological symptoms of adhd. After a few months, christians family did add medication. The teacher said the combo has been remarkable. Since hoe started this, he has moved up three reading levels. Hes made tremendous progress. Reporter success for a family that once saw that as a long shot. Kristen dahlgren, nbc news, new jersey. Theres more ahead here tonight. Move over baby boomers. When my doctor told me i have agerelated macular degeneration, amd we came up with a plan to help reduce my risk of progression. And everywhere i look. Im reminded to stick to my plan. Including Preservision Areds 2. My doctor said Preservision Areds 2 has the exact nutrient formula that the National Eye Institute recommends to help reduce the risk of progression of moderate to advanced amd. After 15 years of clinical studies. Preservision areds 2. Because my eyes are everything. Muddling through your morning is nothing new. Your nose is the only thing on your mind. And to get relief, anything is fair game. Introducing rhinocort® allergy spray from the makers of zyrtec®. Powerful relief from your most frustrating nasal allergy symptom ,all day and all night. Hasnt your nose been through enough already . 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Serious, sometimes fatal infections and cancers, including lymphoma, have happened, as have blood, liver and nervous system problems, serious allergic reactions, and new or worsening heart failure. Before treatment get tested for tb. Tell your doctor if youve been to areas where certain fungal infections are common, and if youve had tb, hepatitis b, are prone to infections, or have flulike symptoms or sores. Dont start humira if you have an infection. Talk to your doctor and visit humira. Com. This is humira at work. Were back with the daytime drama that has fans live with kelly and michael blue. Several days off the air following the revelation her cohost would be leaving and questions how she was informed. Her comments about all of it today have a lot of people talking about respect in the workplace. Nbcs Cynthia Mcfadden has more. Reporter as workplace throwdowns go, this was a doozy. Guys, guys, guys, our Long National nightmare is over. Here are kelly ripa and Michael Strahan reporter kelly ripa was back on the air today. My dad who was a bus driver for 30 years thinks were all crazy. And i think hes right. Reporter at issue, ripa said she was blindsided by abc executives who told her only moments before making it public that her cohost, Michael Strahan, was moving to good morning america. Ill be completely honest. Im fairly certain there are trained snipers with tranquilizer darts in case i go too far off message. I needed a couple of days to gather my thoughts after 26 years with this company. I earn the right. Reporter her relationship with strahan salvaged at least on camera. Though today the network announced strahan would leave the show in two weeks. Not in the fall as originally planned. She said Network Executives apologized to her for bungling the process. She made no apology for missing work. And lets be honest, i know half of you called in sick to be here, so we get each other. Reporter her humor did not diminish her message. Started a much greater conversation about communication, and consideration, and most importantly, respect in the workplace. Reporter the tiny woman with the big paycheck said what people in all kinds of workplaces would like to say. Cynthia mcfadden, nbc news, new york. Here come the millennials. Theyre taking over according to the folks at pew, based on population estimates, there are now 75. 4 million millennials in the u. S. Now the largest generation in our country. Dog owners, you may love hugging your canine, but science said the feeling isnt mutual. A new study examined hundreds of images and found eight in ten dogs showed signs of stress when theyre hugged. They apparently turn their heads away or lower their ears when hugged. If you want to show some love, a pat on the head or a treat are recommended instead. They do look huggable, dont they. A yogurt empire made billions. Now a ceo is surprising all his im billy, and i quit smoking with chantix. I had a lot of doubts going in. I was a smoker. Hands down, it was, thats who i was. After one week of chantix, i knew i could quit. Along with support, Chantix Varenicline is proven to help people quit smoking. Chantix definitely helped reduce my urge to smoke. Some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. Some had seizures while taking chantix. If you have any of these, stop chantix and call your doctor right away. Tell your doctor about any history of Mental Health problems, which could get worse or of seizures. Dont take chantix if youve had a serious allergic or skin reaction to it. If you have these, stop chantix and call your doctor right away as some can be lifethreatening. Tell your doctor if you have heart or blood vessel problems, or develop new or worse symptoms. Get medical help right away if you have symptoms of a heart attack or stroke. Decrease alcohol use while taking chantix. Use caution when driving or operating machinery. Most common sideaffect is nausea. Life as a nonsmoker is a whole lot of fun. Ask your doctor if chantix is right for you. 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. Psst. Hey. Where you going . Weve got that thing you know. Diarrhea . Abdominal pain . But we said wed be there. Woap, who makes the decisions around here . Its me. Dont think ill make it. Stomach again. Send if youre living with frequent, unpredictable diarrhea and abdominal pain, you may have Irritable Bowel Syndrome with diarrhea or ibsd a condition that can be really frustrating. Talk to your doctor about new viberzi. A different way to treat ibsd. Viberzi is a Prescription Medication you take every day that helps proactively manage both diarrhea and abdominal pain at the same time. So you stay ahead of your symptoms. Viberzi can cause new or worsening abdominal pain. Do not take viberzi if you have or may have had pancreas or severe liver problems, problems with alcohol abuse, longlasting or severe constipation, or a blockage of your bowel or gallbladder. If you are taking viberzi, you should not take medicines that cause constipation. The most common side effects of viberzi include constipation, nausea, and abdominal pain. Stay ahead of ibsd. With new viberzi. Finally tonight, a big surprise for a brand Many Americans love. Chibanti yogurt became a multibillion dollar sensation. We were can there exclusively today when the ceo gave a gift that is turning employees into owners, and a few future millionaires. Harry smith has tonights making a difference. Reporter in the modern workplace, hugging the boss may not be the first instinct of many employees. Oh, my god reporter but there were hugs aplenty this morning at the chibanti yogurt plant in upstate new york. We used to work together. Now we are partners. Reporter real partners. Financial partners. Hes giving his employees a 10 stake in the company, when it goes public or is sold. Its a windfall that could be worth hundreds of thousands of dollars, each. Thats amazing. Amazing. Who does that . Completely unexpected. I think that everyone is so excited. Reporter thats two plants and more than 2,000 employees, a move more Silicon Valley than upstate new york. Why do this . You know, its been my dream. I like to give back to them and say, you and this community and this country has been so great to us, and id like to return that favor back to you. Reporter the success of chibani can only happen in america, an immigrant from turkey who started with nothing. You can always tell yourself, im going to do this. But truly believing in it is a miracle. Reporter maybe the miracle is that they all believe. Terri edmonds is employee number six. I think about how little we started, and how hard all these people worked. To bring this to what we have. Im very proud. Reporter the money means a lot, say these folks, but being appreciated means even more. Harry smith, nbc news, new berlin, new york. That will do it for us on a tuesday night. Im lester holt. For all of us at nbc news, thank you for watching, and good night. Now your nbc 10 first alert weather. Good evening, im meteorologist sheena parveen, quick update on the storms that have been rolling through philadelphia. Now clearing out, theyre in new jersey at the moment if we zoom in you see it through gloucester, camden county, Burlington County and mount laurel this is heavy rain and lightning, moving to the eastsoutheast, Galloway Township by 7 27, stafford closer to 7 40. More updates in 30 minutes. The set and takes on the elephant in the room. I am thrilled for michael. I am thrilled for you. Did they really make peace, or was it just for tv . Strahans last day revealed and why he says hes scared to death about his new gig on gma. Designer rachel roy confronted about her relationship with beyoncs husband. Did you have an affair with him . Plus, rita ora dressed up like bey. Did she just out herself as jayzs lover . Inside princes paisley park compound, as we break news about the tribute concert. Then, the voice stars remember the legend. His music can change my day. Adam levine opens up about behatis pregnancy. Thats why you married her. Plus, Scott Disicks young any girlfriend. Now on extra, from Universal Studios hollywood, the entertainment capital of l. A. Hey, everyone