Milestone. Nightly news begins right now. This is nbc nightly news with lester holt reporting tonight from san francisco. Good evening, music fans everywhere are reacting to the stunning loss of pop superstar prince. One of the most unique and dynamic performers that gave us hits such as purple rain and little corvette. There is a growing memorial outside princes minneapolis area home as others are sharing grief on social media tonight. In his own statement, president obama writes the world lost a creative icon. The 57yearold who blasted onto the music scene in the 70s with his edgy mix of rock, soul and funk was found in his home today unresponsive and was declared dead a short time later. Well go back to minneapolis in a moment for more on here is nbcs cynthia mcfadden. I never meant to cause you any sorrow reporter he was given three names at birth, prince Rogers Nelson but he only needed one, prince. Purple rain, purple rain vaulting to super stardom with purple rain prince won an Academy Award and six grammys. Selftaught musician, his sound of pop, rock and funk came to follow no rules but his own. I wanted to be different. Reporter and he was. According to Rolling Stone he played virtually all the instruments from his first five albums. He wanted younger musicians to understand how he saw things. When i was rehearsing with beyonce for the grammys, i sat her down at the piano and helped her to learn just some simple scales. Reporter for her part, beyonce said she was also his skill as a performer that thrilled audiences. His flamboyance legendary. He helped mold the still new world of music videos. Reporter queen with his explicit sexual lyrics and cinema qualities. By 1990 he was such a part of the culture, it seemed everybody was singing his songs. Even Julia Roberts in the film pretty woman. There were a lot of firsts, to make his music available for download and the first and only music to change his name to this unpronounceable symbol. He said he did it to gain artistic freedom. He was not confined to the recording studio. Despite the soaking 2007 super bowl halftime show is considered by many the greatest one ever. Reporter bruce rogers designed that show. He remembers the producer getting on the phone with prince before the performance. I want you to know its raining and prince is like yes, its raining and are you okay . And prince is like can you make it rain harder . Reporter and that was part of the thrill of watching him. He was all in every time. But the bigger than life man on stage was famously shy off. You dont like the live camera . Does it make you uncomfortable . Not when im singing. Reporter married twice, his personal life remained largely unknown. Im really musician at heart. Thats really what i do. Im not mysterious. Im people know my music, i would say know me. Reporter cynthia mcfadden, nbc news, new york. There are still many questions tonight surrounding princes death. At this point the cause remains unclear, but the legendary performer did have a health scare less than a week ago that led to his plane having to make an Emergency Landing. Ron mott is at princes paisley park complex outside minneapolis and has more. Reporter news of the 57yearold singers death at his famously paisley park estate quickly sparked shock and heartache. Fans gathering outside the mansion tonight. I cant believe its true. I cant believe hes gone. Reporter authorities confirmed prince was found unresponsive in an elevator at his home at 9 43 this morning. He was pronounced dead a short time later. His publicist saying there are no further details as to the cause of death at this time. Just one week ago, prince was in atlanta for his final public performance. The next day, a private plane taking him back home to Emergency Landing in illinois, and prince was rushed to the hospital. His aid said he was suffering from the flu having recently cancelled a number of scheduled concerts. Saturday he was released from the hospital and threw a dance party to mark the occasion. According to attende attendees, prince addressed his health saying wait a few days before you waste prayers on me. Sounded great, sounded normal. Reporter prince was perhaps the most famously if not famous shy native resident of the twin cities area. An anchor of this booming hot spot for singers and songwriters. Tonight his loss mourned around the globe. Fell he 80s icon madonna calling him a true visionary, im devastated. Aretha franklin. Such a blow. Its just its really surreal. Its kind of unbelievable. Definitely an original and a one of a kind. Reporter in a fitting tribute, the ballpark where his hometown twins played, purple as rain falls on the city. It may be some time before we know the official cause of death. Late last week when word circulated that prince fell ill on this airplane ride home, a lot of fans were understandably concerned but few if any could imagine him dying here today. This road in front of paisley park has been closed for hours and has not stopped the steady stream of people to pay respects to the man that was an icon to the community and world. Lester . Such a shocking loss, ron, thanks. Were going to play more of princes music later on in the broadcast. Lets turn now to the race for president and donald trump making major waves with something he said this morning on today. It concerns North Carolinas controversial law that dictates which bathrooms transgender people may use. Trumps comments appear to signal a more moderate shift and some are asking is it a sign of things to come . Is reporter donald trump moving towards the middle sounding moderate on social issues criticizing North Carolinas transgender bathroom ban. People go, they use the bathroom that they feel is appropriate. So if Caitlyn Jenner were to walk into trump tower and want to use the bathroom, you would be fine with her using any bathroom she chooses . That is correct. Have we gone nuts . Reporter ted cruz wasted no time attacking painting the front runner as a liberal. Donald trump agreed in attacking the state of North Carolina for passing the bathroom order. Reporter but trump went further. On abortion he told the today show the republican platform should expand to allow exceptions for rape, incest and life of a mother. I would absolutely for the three exceptions. Reporter trump 2. 0 in full effect. The campaign trying to mend fences with the establishment at the rncs Spring Meeting in florida. Were here really to let him know l campaign with him. Reporter a traditional trump was once unthinkable but Paul Mannafort saying its time to adjust. Its will be a trump brand of the party but were republicans running as a team. Reporter trumps new strategy, more substantive and less unnecessary exposurexposure. Whats the one hat you wish youd give us . Tweeting. Reporter trump is about to take the stage tonight and yet in another sign to the campaign is turning more traditional. They hired a speech writer and donald trump will practice on a teleprompter. Telling insiders tonight you cant change somebodys character but you can change the way somebody presents themselves. Lester . Katy tur tonight, thank you. Lets turn to the democratic battle and our exclusive interview with Bernie Sanders. Speaking with andrea tc path to the nomination is growing more difficult but also opens up why hes not dropping out and what it would take for him to eventually endorse hillary clinton. Reporter Bernie Sanders firing up a big crowd in redding, pennsylvania. But in his first interview since his devastating loss in new york, sanders acknowledged the path to the nomination is now hard. Unrealistic, its a hard path. I admit that. If after june 7th, after california, if you dont have majority, would you then concede endorse her the way she did of barack obama . Look, if we do not have majority, i think it will be very hard for us to win. Sanders a lifelong socialist until this race says he will stay a democrat no matter what and raise money for democrats but will he help clinton if shes the nominee . This is a twoway street, andrea. What will secretary clinton do . Does he regret how nasty new york got . I wish it had not gotten that negati down the rhetoric, sanders noticeably not attacking clinton at rallies today but the wounds are still raw. He is angry about this tweet from clinton supporter David Plouffe calling it a fraud because it tell s supporters he has a path to the nomination. In many cases im being attacked by the clinton team unfairly. Will sanders help clinton win the votes of young supporters . He told me that depends whether her platform adopts his ideas. Andrea mitchell, nbc news, redding pennsylvania. A Big Development in one of the biggest scandals in the history of auto industry. Volkswagon reached a broad settlement to compensate owners of diesel cars with technology to cheat emissions test. As nbcs tom costello tells us, its an estimated billion dollars in cash payouts and buybacks. Reporter a c reputation on reliability is paying the price for fraud. Volkswagon is a leader in fuelefficient technology. Reporter the Clean Diesel Technology wasnt clean at all. Vw says tricking the emissions test while polluting at 40 times the illegal limit. In new jersey where sales are down double digits, this vw dealer calls it the biggest fraud. After 25 years weve been treated like a hershey wrapper after the candy bar is consumed. Weve been tossed in the gutter. Reporter today a federal judge approved the broad outlines of vws plan to compensate the half million customers in america that bought the effected models including jettas, beetles, passats and audis a 3s. The scandal will cost vw billions of dollars. The ceo forced out a criminal Investigation Underway and u. S. Sales down 7 . Volkswagon has a reputation of just being li and that has been damaged. Reporter in a statement, the company says volkswagon intends to compensate customers fully and remediate any impact. Vw has until june 21st to finalize how it plans to compensate owners likely through cash compensation, buybacks and even cancelling leases. Now to a widening humanitarian crisis arising in ecuador. Many are going without food and water and five days after the quake struck, hope of finding more survivors is fading as the death toll continues to mount. Miguel almaguer is there. Reporter five days after the massive earthquake, desperate stories of survival. Rescue teams sifting through debris. 163 are still missing, time is running out. Survivors face a different kind of fight to stay alive. This is no mountain of rubble. The dump is where veronica looks for food. Our houses were destroyed she says. At least we survived with something from here. The streets are filled with the desperates. 23,000 left homeless. In tent cities, this is how the young try to keep clean. Hundreds of families, thousands of children sleeping on the tarmac of a shattered airport in tropical heat. Vivianna tells us, we get one meal a day and well be here at least a year. Her daughter is 1 years old. For many here, these tent cities are the normal. These families have nowhere else to turn and no idea where they will go next. But there is still hope working day and night miraculous rescues, three pulled from the rubble overnight in the darkest places they find life. Francisco was pulled from beneath layers of concrete. It felt like the end of the world he says. He is one survivor. A glimmer of hope in a country that is shattered. Miguel almaguer, nbc news, ecuador. Still ahead tonight, caught on camera, no one stopped to help a man after he was attacked, robbed in the street and then killed when a car ran over him. All of it unfolded, if it unfolded in front of you, what would you have done . Also, what do you get for the queen who has everything . How britains monarch is celebrating her 90th birthday. Januvia sitagliptin is a oncedaily pill that, along with diet and exercise, helps lower blood sugar. 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Nbcs Gabe Gutierrez has the video which some viewers may find disturbing. Reporter died alone unconscious outside a busy 7eleven, cab running over him. People walked by like Nothing Happened this is a human, this is a person. What if this was your family . How would you feel about that . Reporter Marcus Gaines was 32 years old and worked as a bartender at a downtown hotel. His family is suing the cab drivero seven eleven claiming they did not provide acquit security. February 7th in chicago at 4 00 a. M. He buys chips inside the store. As hes leaving, security escorts out another man. At 4 16 that man punches gains who falls to the street. At 4 17 two men appear rifle through his pockets and four minutes later the 7eleven Security Guard calls 911 from outside. Gains lies in the street for nearly two minutes, multiple bystanders seemingly do nothing. A taxi then turns the corner and runs him over. Feet neither the taxi driver nor the Cab Companies or 7eleven returned our call. Their customer was attacked in their threshold initially and chased away from their store while their Security Guard was that far away. Reporter tre question why a man died alone as so many did nothing to help. Gabe gutierrez, nbc news. Tough to watch. Were back in a moment with the big change that could spell trouble for kids in a beloved american competition. 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. 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This years competition will be harder after the last two years ended in tears when spellers exhausted the 25 preselected championship questions. They could have 25 words and organizers can pick tougher ones as they go. A major celebration across the pond in Great Britain today as Queen Elizabeth turned the big 90. A major milestone for the monarch and milestone to make memories on her 90th birthday. Our kier simmons has the story. Beacon tonight overseeing thousands of official occasions. This time, though, the occasion her 90th birthday. A new picture today with grandchildren and great grandchildren, nothing new for the queen. Here a young mother with charles and william and henry providing commentary. He looks like george, and george looks like him. Reporter another image today with her beloved dogs reflecting another era when she was princess elizabeth. Truth is, the queen has changed. Her reign was rocked by the death of dianna when tony blair was prime minister. She thought about it, she adjusted, she moved and she then recovered her poise. Reporter but now, at 90, shes loved. There are cheers, people singing, bells ringing. The queen doesnt like a fuss but it is her birthday. And unlike many leaders these days, respected because she is genuine as the u. S. Ambassador here. Warm, welcoming and wonderful. The queen is awesome. [ laughter ] reporter tonight the president arrived in london. Tomorrow, hell nc with the queen whose met 11 u. S. Leaders, and she is still here. Now entering her tenth decade. Keir simmons, nbc news. When we come back, more of the man and his music. Princes greatest hits from his decades in the spotlight. Thats what they say. Is it . Cleaner than my mouth. Backed by the service and security of american express. Cleaner than my mouth. 80 but up to 90 fall short in getting key nutrients from food alone. Lets do more. Add one a day womens 50 complete multivitamin. With vitamin d and calcium to help support bone health. 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To you, theyre more than just a pet. So protect them with k9 advantix ii. It kills fleas, ticks and mosquitoes. K9 advantix ii. For the love of dog. Well end our broadcast tonight with a look back at the music of the legendary prince who died today at 57. Prince was a prolific artist whot release released four albums in just the last two years of his life. For the fans he left so much great music behind and well be listening to for decades to come. Well let his music take us off the air tonight as we say good night from san francisco. Lets go so tonight were going to party like its 1999 ill rock the house, world i would die for you, darling if you want me to purple rain, purple rain purple rain, purple rain you dont have to be beautiful the trend is going this way, prince is going this way. The world rocked by another stunning death. Prince is gone at ag