This is nbc nightly news with lester holt. Substituting tonight Peter Alexander. Tonight, new details are emerging about what might have motivated the young copilot who deliberately flew his german airliner into the alps this week. His exgirlfriend is now speaking out about what she says the copilot told her including an ominous warning months ago. This as we learn about the planes captain, who tried to break down the door. He was 34, the father of two. And like his copilot he completed a Flight Training stint here in the u. S. In phoenix. We begin again tonight with nbcs bill neely. Hes in the french alps. Bill. Reporter good evening, peter. Here in france and in germany they are still searching for bodies for clues and for answers to the question what on earth drove this man to commit mass murder . Well now a young german woman may have provided them with some clues. Day five and the mountain still holds secrets the investigators are hunting for. But theyre focused too on the secrets of the man who caused all this. Copilot Andreas Lubitz hid medical problems from the airline he worked for, but was more candid with a Flight Attendant who said she was his former girlfriend. In an interview with germanys bestselling tabloid newspaper. She claimed lubitz said last year one day im going to do something that will change the whole system and then everyone will know my name. Shed flown with lubitz for several months and said he had Health Problems and felt pressured by work. Nbc news cant confirm her allegations, but investigators are now focusing on his mental state and medical records. After finding torn up sick notes at his apartment declaring him unfit to work on the day of the crash. Today, more than 30 investigators were flown to the crash site to search for the missing flight recorder and for bodies. The helicopters are coming and going here every few minutes. The cause of this crash may be known, but the search goes on. It is relentless. And it is hard. So far theyve brought back more than 600 body parts. The first priorities is identification of the bodyies bodies. The fact there is 150 people die there so thats why its hard. Reporter one pilot has seen more than most. We were the first to find the crash. Reporter the first pilot in is still shocked. A plane crash on the ground and you cant see anything. Its a little millions of pieces all over the floor. Reporter the family of the planes pilot who tried to smash his way back into the locked cockpit, got as close as they could today. Like the other bereaved gathering beneath the mountain where their loved ones still lie, lost in disbelief. Well those families have already given dna samples and experts are now trying to match them with the remains found at the crash scene. The spanish interior minister says dozens of the dead have already been identified. But the whole process will now take weeks, peter. Bill neely in the alps for us tonight. Bill thank you. For more on the investigation were joined once again by former ntsb investigator gregg fife. Greg where are investigators focusing their attention right now . And how are other Airlines Worldwide responding . Right now the technical aspect of the investigation is gone. Its now focused on the first officer, his Mental Health and where the trap lines could have been to try to get him out of the cockpit because of some of these issues now developing. The airlines now because of this solo pilot being there and no way to get into the cockpit to remedy a bad situation are now adopting the protocols of the United States in putting a second crew member in there so that in the event something happens, an incapacitation or nefarious act, theyre going to be able to at least assist in trying to get somebody qualified back in to stop the process. Investigator greg fife tonight, thank you. In this country were following late developments in los angeles where a commuter train rammed into a car that was crossing the tracks. More than 20 people were injured. Nbcs jacob rascon is in los angeles tonight with the latest there. Jacob, good evening. Reporter peter, good evening. At least 21 people are hurt two of them critically after the commuter train collided with a passenger car. The impact tore the roof from the small sedan and caused two of the train cars to derail. Most people onboard were not seriously hurt but the drivers of the car and the train are fighting for their lives tonight. Its the latest in a series of train crashes and derailments involving cars across the country this year. Safety at railroad and train crossings has been the subject of intense investigation. In todays crash Officials Say it appears the driver of the car pulled out in front of the train. Peter. All right, jacob rascon in los angeles tonight, jacob, thank you. A decorated Boston Police officer is in Critical Condition tonight after being shot in the face. This happened last night when officer John Moynihan and other officers approached a car during a traffic stop. The suspect allegedly shot moynihan pointblank under his right eye. Other officers returned fire killing the suspect. Officer moynihan was honored for his role and bravery during the shootout with the Boston Marathon bombers two years ago. In florida a gunman shot and wounded seven people early this morning during a spring break party. This happened at a house in panama city. All of the victims are in their early 20s and police said several were students at alabama a m university. They were visiting the gulf coast. A 22yearold suspect also from alabama was arrested and charged with seven counts of attempted murder. Amanda knox began the next chapter of her life today after an Italian Court cleared her once and for all of the murder of her roommate back in 2007. We get more on this tonight from nbcs Kelly Cobiella in rome. Reporter after seven and a half years, amanda knox is finally free. Breaking her silence outside her home in seattle late last night. Im incredibly grateful for what has happened for the justice i have received for the support that ive had from everyone from my family from my friends to strangers. Im so graitful to have my life back. Reporter knox was a 20yearold College Student in italy when her roommate british student meredith kercher, was sexually assaulted and stabbed to death. Knox and her thenboyfriend Raffaele Sollecito were arrested interrogated tried three times and convicted twice for murder. On friday, Italys Supreme Court threw out the latest conviction and cleared them both. This was a mistake. From the beginning. We shouldnt have waited all these years. Reporter in a statement meredith kerchers family said the decision came as a shock, but was an outcome we knew was possible. Even if it wasnt what we expected. One man, rudy said to be a smalltime drug dealer knox admitted to knowing, is serving time for kerchers murder. Knox when asked was emotional talking about her former roommate. Meredith was my friend. And and, its she deserved so much in this life. Im the lucky one. Thank you. Reporter while knox is no longer on trial, her attorneys could be back in an Italian Courtroom on her behalf. Theyre considering suing the countrys Justice System for wrongful detention. Knox spent almost four years behind bars in italy. Her lawyers say she hasnt decided yet whether to sue or quietly move on with her life. Kelly cobiella nbc news rome. New protests today in indiana after that states governor signed a controversial bill this week permitting businesses to refuse service to samesex couples on religious grounds. The backlash was immediate and it was severe. We get more tonight from nbcs gabe gutierrez. Reporter outside the indiana State Capitol today, a wave of fury. I think its absolutely going back to the dark ages. I dont think religion should be in business. Where you shouldnt be able to discriminate on whoever we want. Reporter on thursday indianas governor signed a bill that would allow businesses to deny Services Based on their religious beliefs. This bill is not about discrimination. And if i thought it legalized discrimination in any way, i would have vetoed it. Reporter but opponents argued it wouldnt legalize discrimination after the states ban on samesex marriage was overturned last year. It basically says to a group of people that youre second rate you dont matter. And if you walk into my store, i dont have to serve you. Reporter the backlash has spread across social media. Apples ceo tweeting apple is open for everyone. We are deeply disappointed in indianas new law. Ahead of next weekends final four in indianapolis the ncaa released a statement. We are especially concerned about how this legislation could affect our student athletes and employees. Indiana is now one of 20 states with socalled religious freedom laws. Some feel the concerns are overblown. Lisa squire owns a flower shop. I have thought a lot about this. Im a strong christian. Reporter she opposes samesex marriage. If someone walked in my store, i think i would serve them. Reporter still tonight the controversy is growing. Seattles mayor is now prohibiting travel by City Employees to indiana, citing the new law. Gabe gutierrez, nbc news. New questions are being raised in congress tonight about Hillary Clintons private emails and the timing of her decision to delete them. Nbcs Kristen Welker has that story tonight. Reporter new revelations about Hillary Clintons emails this weekend from the congressman who heads the special investigation into the attack against the u. S. Consulate in benghazi. Congressman trey gowdy says clinton deleted all of her personal emails, writing in a statement we learned from her attorney secretary clinton unilaterally decided to wipe her server clean and permanently delete all emails from her personal server. Gowdy had demanded the emails from clinton as a part of his investigation and admonished the former secretary of state on meet the press last sunday. We dont get to grade our own papers in life. And she had a very unique arrangement with herself as it relates to public records. Reporter clinton s a turned over 55,000 pages of emails at the request of the state department which wanted to update its records. Gowdy noted clinton purged her personal server after the request was made. Friday a spokesperson for clinton said turning over those emails is in keeping with the letter of the law. Writing in a statement, secretary clinton has already turned all of her work emails over to the state department. Clintons use of a private email account has complicated the rollout of her expected 2016 president ial run. Earlier this week clinton tried to downplay the controversy. No more secrecy. No more zone of privacy. After all, what good did that do me . Reporter the question now, will the email flak resonate with voters into 2016 . Unfortunately for Hillary Clinton shes created a situation where republicans can just keep raising questions about emails she deleted unless and until it starts backfiring on them. Reporter both sides are already drawing battle lines over the issue. Democratic congressman elijah congressman called gowdys actions a political charade. The Republican NationalCommittee Fired back saying even nixon didnt destroy the tapes. A preview of things to come as 2016 approach peter. Kristen welker at the white house tonight. Kristen, thank you. Intense nego in switzerland today with official from the and other countries looking to reach a framework with iran for that country to scale back its nuclear program. The deadline for initial agreement is this tuesday. Our chief Foreign Affairs correspondent Andrea Mitchell is in switzerland for us tonight. Andrea good evening. Reporter peter good evening. U. S. Officials say this is gut check time. The mood here really turned grim at the talks. John kerry had frantic talks into the night and all day with irans foreign minister skrks zarif. The big obstacle whether iran can keep vast centrifuges iran says wants for peaceful purposes but u. S. And allies fear could be used to build a nuclear bomb. The other big issue is also how quickly sanctions would be phased out on iran. So the u. S. Is pointing to iran and iran officials are pointing to the u. S. If these talks do fail perhaps to clear his head john kerry took a bike ride today around here in switzerland. Now as we come down to these final days for the first time and this could be trying to have a negotiating strategy but for the first time u. S. Officials are talking about what will happen if all of this fails. Peter. Certainly is crunch time Andrea Mitchell in switzerland tonight. Andrea thank you. Tomorrow on meet the press, chuck todd will have more in the middle east including the latest on the iran talks and the latest in yemen including interview with the saudi ambassador to the United States. When nbc nightly news continues on this saturday detecting concussions. A test that is easy accurate and doesnt require a doctor. And later, a monument to the golden age of movies. Returning a palace to i have a cold with terrible chest congestion. I better take something. Theraflu severe cold doesnt treat chest congestion. Really . New alkaseltzer plus day powder rushes relief to your worst cold symptoms plus chest congestion. [breath of relief] oh, what a relief it is. Ride away by roy orbison begins to play i ride the highway. Im going my way. I leave a story untold. He just keeps sending more pictures. If youre a freerange chicken you roam free. Its what you do. If you want to save fifteen percent or more on Car Insurance you switch to geico. Its what you do. Two wheels a turnin. Fact. When you take advil you get relief right at the site of pain. Wherever it is. Advil stops pain right where it starts. Relief doesnt get any better than this. Advil. Get fastacting, longlasting relief from heartburn with it neutralizes stomach acid and is the only product that forms a protective barrier that helps keep stomach acid in the stomach where it belongs. For fastacting, longlasting relief. Try gaviscon®. Were back tonight with one of the biggest concerns for Young Athletes and their parents, concussions. But now a simple twominute test done on the sidelines after a head injury is proven to be one of the most reliable ways yet to identify a concussion from peewees to the pros. When players collide, the impact can be just as severe as the 25mileanhour car crash. Leaving an athlete dazed and dizzy, or worse. University of delaware running back Jaylen Randolph suffered a concussion last year. Things were blurry all stars. Crucial to preventing serious and longterm injuries is quickly assessing an athlete for concussion right there on the spot and then getting them out of the game. Visual senses are incredibly common after a concussion. Patients complain often of photo sensitivity, double vision and vertigo. Reporter researchers at New York University found this simple and inexpensive vision test where youre timed reading a jumble of numbers correctly assessed concussions in 75 of Young Athletes. Under normal conditions it should take how long . About 37 seconds for a collegiate athlete. After concussion . 45 seconds. Like what year is it 97 accurate. The test can be a valuable tool especially in sports where doctors are rarely on the sidelines. The university of delaware sees nearly 40 concussions a year. Soccer standout emily market says its always in the back of her mind. When you watch a player or teammate or opponent go down after bumping heads. Yeah its your first thought. Reporter concussion . Uhhuh. I want you to catch as quickly as you can. Reporter this school recently joined the nations largest study, a joint effort by the ncaa and department of defense. And now uses the vision test for all of its athletes before each season. So we can prepare this person to their own performance. So we really know objectively whether or not theyre suffering an injury. Repor taking the guess work out of the game. You cant say what you do on those tests, the results are there. Theyre on paper. You cant get away from them. Reporter making sure the days of playing hurt become a thing of the past. Good new tool for parents and coaches. Up next what happened when a 4yearold girl decided she needed a nobody told us to expect it. Intercourse thats painful due to menopausal changes its not likely to go away on its own. So lets do something about it. Premarin vaginal cream can help it provides estrogens to help rebuild vaginal tissue and make intercourse more comfortable. Premarin vaginal cream treats vaginal changes due to menopause and moderatetosevere painful intercourse caused by these changes. Dont use it if youve had unusual bleeding breast or uterine cancer blood clots, liver problems, stroke or heart attack, are allergic to any of its ingredients or think youre pregnant. Side effects may include headache pelvic pain, breast pain vaginal bleeding and vaginitis. 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Researchers are going to study how all that time in space affects kellys body and compare it to his twin brother mark kelly, a former astronaut who will be monitored back here on earth. It was a mystery for at least a moment this week. What was a peaiano doing high on a mountain top in california . Turns out it was used in a music video shot by a seattle artist. If youre wondering how it got there, a fiveperson crew hauled it a full mile up the mountain using only a rope and a dolly. The hills did in fact come alive with the sound of music. And who hasnt had the urge in the middle of the night to get up and grab a snack . In philadelphia prompted a 4yearold girl to get dressed, leave her house and go to a nearby 7eleven for a slushie. The driver called the police who took her to a hospital where she was finally reunited with her mother. No word whether she ended up with that drink. 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Of course many of them fell on hard times and were demolished. One of them including many here in brooklyn are reporting a second act. Nbcs erica hill. Reporter walking through Brooklyns King theater was always supposed to feel like an event in itself. This place is absolutely glorious. I walked out here a couple hours ago and saw, you know this great grand hall. And it was like oh this is going to be so much fun. Reporter when it opened in 1929 the kings was the largest theater in the area. More than 3,600 eats hosting major events on the screen and on the stage. But its glory days wouldnt last. By the 70s this once opulent venue was barely hanging on. In 1977 the doors closed seemingly for good. This is the old ladies lounge. Reporter after nearly 40 years of neglect and several failed attempts at redevelopment, its guilded roots had all but disappeared. What wasnt bolted down had been looted. It was a real mess. Major water damage. Plaster, powder all over the seats. Reporter recreating the original glory of this space also meant painstaking research. Delicately peeling away decades of grime. Every piece of the theater was touched by a hand. From you know the molding of the plaster to the layers of paint. Reporter two years and more than 90 million later the restoration is nothing short of spectacular. Did you have any idea sort of how majestic it would be . No. But its just got a great vibe to it. And it sounds awesome on stage too. Reporter now grammy Award Winning singer song writer sarah malauhlin. Everywhere i look its grand and its glorious. Reporter the company now running the theater estimates its rebirth will bring a much needed boost to the local economy. And along with it a renewed source of pride. I havent been here since the late 60s. And to see it in this condition is just wonderful. Theaters are the hearts and souls of neighborhoods in this community. And you start tearing them down and we just lose something that you can never get back. Reporter tonight in brooklyn that soul is alive once again. Firmly in place for generations to come. Erica hill nbc news brooklyn. A great place to see a show. Thats nbc nightly news for this saturday. Im Peter Alexander reporting from new york. Well see you back here tomorrow morning on today. For all of us at nbc news, good night. Announcer the following is a paid advertisement for omega xl. My names larry king. A few years ago, i had to have openheart surgery. When i recovered, i established the Larry King Cardiac Foundation to help people like me avoid heart problems with proper foods medication, and a healthy lifestyle. Well, i recently met ken meares, a man with similar goals. Hes the founder and c. E. O. Of great healthworks and, for 25 years, has been active in creating and promoting good health. Well, ken has developed and tested a product called omega xl. 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