From nbc news World Headquarters in new york, this is nbc nightly news, reporting tonight, lester holt. Good evening. The worst fears were confirmed amid the twisted scene of that derailed amtrak train in philadelphia. Cadaver dogs discovering the body of yet another victim, bringing the death toll to eight. And tonight comes late word that the engineer at the controls of the speeding train has agreed to speak to the ntsb. Investigators also revealing data showing the train was accelerating, shortly before it reached the fateful curve, but unable to slow in time. Nbcs tom costello leads our coverage again tonight from the crash scene. Reporter from track level today, just a few feet from the wreckage of train 188, amtrak crews are using frontend loaders to lay down new sections of track. It was here this morning that cadaver dogs found an eighth and final victim. 45yearold Robert Gildersleeve of maryland. We believe that we have now accounted for all 243 individuals that we believe were on amtrak train number 188 from tuesday night. Reporter also today, we learned more about the engineer at the center of the investigation. 32yearold Brandon Bostian was an amtrak conductor before becoming an engineer in 2010. Today his attorney told Good Morning America bostian was injured and doesnt remember the crash, had not been drinking or doing drugs, and his cell phone was turned off and in his bag, as required by amtrak policy. The last thing he recalls is coming to, looking for his bag, getting his cell phone, turning it on and calling 911. Reporter the speed limit on the tracks leading up to the curve at frankford junk is posted at 80 Miles Per Hour slowing to 50 in the curve. But train 188 was traveling 106 Miles Per Hour when the engineer slammed on the brakes. It was too late. The train actually went off the tracks right down there around the bend. It then careened all the way down the rightofway. And in the process, it took out four of these poles, the high voltage electrical structures. The challenge now is to get all of this rebuilt. At the crash scene today, amtrak ceo, joe boardman. What do you say to the americans who ride this northeast corridor every single day and may be worried about this is a damn safe railroad. I mean, tom, you know this is the first time in 28 years that we have had this kind of a derailment with a loss that weve had. Reporter while most of the train cars have been relocated to a rail yard in delaware, tonight a single car and locomotive from train 188 remain at the scene, as investigators continue to dig for answers. Also tonight, the first lawsuit connected with this incident has been filed. Amtrak hopes to reopen this section of the northeast corridor, at least partially on monday. Theyre hoping for full service on tuesday if everything goes as planned. Lester . All right, tom. Thanks. As investigators try to figure out who or what is to blame here, there are eight families grieving the loss of loved ones taken from them so suddenly. Mothers and fathers, sons and daughters being mourned tonight. Nbcs rehema ellis tells us about them. Reporter its the news bob gildersleeves family dreaded. His wife and two teenage children learned today his body was found in the twisted train wreckage. Please help me find my dad. Reporter the news comes the day after his family, including his 13yearold son, was passing out missing person flyers, hoping their loved one would be found alive. Seven families are home now making funeral arrangements. And i hope im not number eight. I pray to god im not number eight. Reporter now, along with his sons death is the news 47yearold Laura Finamore from new york also died. A real estate executive whose smile could light up a room, said her family. 42yearold derrick griffith, a dean at Medgar Evers College in new york is being remembered by his students. I remember his smile. But most importantly, i remember the positives, how he went out of his way to make sure that others were doing great. Reporter giuseppe piras, a Wine Merchant from italy, was also killed in the crash. So many heartbroken by the lives lost on amtrak train 188. The good doesnt go away. It stays. Reporter the mother of a toddler and only son, devoted fathers, husbands and colleagues. Eight lives tragically cut short on what was supposed to be a routine train ride. Of 200 people injured in the crash, about three dozen remain hospitalized tonight. Lester . Rehema, thank you. There was a new scare today aboard another amtrak train in milwaukee where an engine caught fire. With dozens rushing to evacuate to safety. It took more than 60 firefighters to put the fire out. Still no word how it started. Thankfully, no one was hurt. There is a growing search tonight in nepal where six u. S. Marines on an aid mission vanished more than two days ago without a trace. Still no sign of their chopper. Nbcs katy tur is in nepal with the latest. Reporter good evening, lester. The search for the six marines and the two nepalese soldiers and their missing huey has stopped for the evening but it begins again in earnest in a few hours when the sun comes up. In total, four u. S. Helicopters are scouring the terrain from above, and 663 nepalese soldiers from the ground. Theyre searching a tenmile wide and 50mile long corridor, which may not seem like that great an area until you consider the landscape. Marine officials tell nbc news the himalayas are the most challenging on the planet with pockets of changing weather and cloud layer that decreases visibility. Not to mention, hundreds of landslides every day. On board the huey, a gps, flares and strobes. Its unknown if any were used. None were seen. And lester, as of now, all of the families of the missing have been notified. Katy tur in kathmandu tonight. Tonight, isis has released a new audio message, purportedly from its leader Abu Bakr Al Baghdadi who hasnt been heard from publicly in months. It comes amid speculation he was killed or badly wounded in an air strike last year. Analysts say the message may be designed to push back on speculation that the groups strength may be weakening as it fights on multiple fronts. President obama sought to ease fears today among arab nations over his proposed nuclear deal with iran. He invited officials from six persian gulf countries to camp david for talks with a notable absence of saudi arabias king, who pulled out of the summit last week, sending his nephew instead. The president vowed to stand by each of these countries with the use of military force if necessary. And while the president was away, there was a commotion outside the white house today. A man arrested, officials say, after trying to launch a drone outside the white house fence. Its not yet clear if the man was trying to launch the drone over the fence or take aerial photos from outside the perimeter. Jeb bush is making another attempt at getting out of a hole he dug himself in with remarks about the iraq war. He took a third stab today at answering this question. Given what he knows now, would he have authorized the war as his brother did. Nbcs Kelly Odonnell has more on bushs evolving answers. Reporter today in arizona, jeb bush tried to clean up a political mess of his own making. Knowing what we know now, what would you have done . I would have not engaged, i would not have gone into iraq. Reporter but thats a huge flip from what he said on monday. Knowing what we know now, would you have authorized the invasion . I would have. And so would have hillary clinton, just to remind everybody. Reporter saying he had misinterpreted the question, bush tried again tuesday with radio host sean hannity. So in other words, if in 20 20 hindsight, you would make a different decision . Yeah, i dont know what that decision would have been. Thats a hypothetical. The fact is, mistakes were made. Reporter republican rivals seized on bushs wavering. Knowing what we know now, would you have authorized the invasion of iraq . Of course not. I dont think you can honestly say that if we knew then that there was no wmd that the country should have gone to war. Reporter fair or not, he is taking heat for his brothers policies. Bush admits he is reluctant to criticize the former president , even when he disagrees. Thats your brother who created isis. Reporter after a shaky week where bush tried to choose his words carefully, he turned heads again when he said this. Im running for president in 2016. Reporter but wait, bush, not ready to formally launch a campaign, tried to clarify by being less definitive today. Are you running for president . Im seriously considering it. Thank you, guys. Reporter and beyond family loyalty, governor bush said he did not want to diminish the service of veterans and their families by denouncing the war and emphasized today their sacrifices in iraq were, in fact, worth it. Lester . Kelly odonnell, kelly, thank you. On the west coast, californias drought is only intensifying as the state is entering the hottest months of the year. Tonight, nbc news has used a drone to capture exclusive images that will drive home the severity of this drought in a way you have never seen before. Nbc National CorrespondentMiguel Almaguer is in Northern California for us. Miguel . Reporter lester, good evening. Lake oroville is symbolic of the drought out west. This is the second largest reservoir in this region. Spend just a few minutes here, and you will quickly see why the outlook is grim. It can hold threeandahalf million acre feet of water. This massive lake, a critical water supply for our daily lives from drinking to irrigation, even fighting fires. The water is pumped to cities like San Francisco and los angeles. The shoreline in oroville spans 167 miles, and thats where you see it most. The dramatic water loss is exposing a vast terrain of brown hills and valleys that used to be submerged. Californias drought is changing our landscape. During the good years, you can see the waterline just below this bridge. But after a crippling dry spell, now four years long, the water is dropping every day. Plunging some 150 feet. And its not just oroville in trouble. Every major reservoir in california, and there are 12 scattered across this state, plays a major role in water supply and distribution. But water levels are at historic lows, and theyre dropping every day. Many like this reservoir are operating at just a fraction of capacity. California is in a state of emergency. Even the occasional rain wont put a dent in the current drought. Water levels at reservoirs all across the state wont rise any time soon. Its replenished here by rainfall and the melting snow pack. The forecast calls for neither of those. So californias drought shows no sign of ending any time soon. Miguel almaguer, nbc news, lake oroville, california. Tonight we are hearing a panicked call for help from a father in massachusetts, realizing he did what could be considered every parents worst nightmare. He absent mindedly left his child in the car, then boarded a train to work, pleading for help to rescue her when he suddenly realized what he did. Nbcs erica hill reports. Reporter a frantic 911 call on board a boston commuter train. I left by accident my toddler in my suv at north quincy station. You left what . The moment the father of two realizes he left his baby in his suv. I left my 1yearold baby in my sufficient by accident this morning at north quincy station. Im on my way pack to the station now. The man who asked not to be identified dropped his 4yearold daughter at school parked and boarded the train. His 1yearold sleeping in the back seat. The ride takes about 25 minutes, and while walking to work he realized he left the baby in the car, jumped back on a train and called 11. I have a gentleman on the phone hes on train. He left his 1yearold baby inside a black saturn vue. Okay. Weve got help on way there. Okay. Ill meet them there as soon as we can. Police freed the unharmed baby and no charges have been filed. This is probably the first that i saw someone completely getting a child and getting on the mbta red line and going all the way into boston. Nationwide 11 of parents admit to forgetting their child in a car. Experts suggest parents put a purse or briefcase on the back seat or diaper bag or stuffed animal on front seat as a reminder that the child is in the car. This father told us tonight it was one of the worst days of his life, and he feels fortunate he came to his senses when he did. Erica hill, nbc news, new york. An incredibly frightening moment. Still ahead tonight, fighting skin cancer, a shocking new warning about skin cancer that so many people are sharing online as doctors reveal the pill thats been proven to reduce your risk. Well tell you all about it. Also a young musical genius youll have to see and hear to believe. Just 11 years old and releasing his first album to rave reviews. Were back with a warning that could not be more timely as the weather gets warmer and were spending more time outside in the sun. It comes from a young mom stricken with skin cancer who has done something dramatic to keep others from suffering the same way she has. Nbcs Hallie Jackson has more on her message, and a new way you can better protect yourself. Reporter an alabama mom named tawny willoughby is the woman behind this shock the skin cancer selfie now spreading on social media. The 27yearold nurse hoping this graphic photo shared more than 60,000 times acts as a wakeup call. This is what skin Cancer Treatment can look like. Wear sunscreen, and get a spray tan. Willoughby has been diagnosed with six carcinomas, a common skin canner that can require painful treatments to remove. Now, though, a new study finds taking a simple vitamin can help prevent those cancers. Its very exciting and its very promising. Reporter dermatologists like tanya are buzzing about the Australian Research that shows people diagnosed with basal or squamous cell carcinoma who took a form of vitamin b3 twice a day were 23 less likely to get the cancer again. You still have to do all the important things for skin cancer prevention. You cant just take b3 and bake in the sun and expect not to against skin cancer. Reporter vitamin no subs kite for sunscreen. Consumer reports is now out with its 17 summer picks, some as expensive at 9 a bottle like walmarts equate spf 50. The best performing sunscreen in our test was one of the most expensive ones. But there were plenty that were 2 an ounce or less. Reporter and heres how much you need to be protected. Consumer reports recommends about a teaspoon of sunscreen on each part of your body exposed to the sun. Hallie jackson, nbc news, los angeles. Were back in a moment with the new developments in the Tom Brady Deflategate saga. Patriots Quarterback Tom Brady is appealing his fourgame suspension over deflategate, while his team has created a website to challenge the report that accused brady of probably knowing that Team Employees deflated footballs. The report claimed that locker Room Attendant jim mcnally referred to himself as the deflator in a text message. The patriots in a rebuttal actually claim that mcnally was talking about losing weight. Human beings now have a shorter Attention Span than a goldfish. This according to a study from microsoft about the effects of todays digital world. By 2013, according to the report, the average human Attention Span was down to eight seconds, a second shorter than a goldfish. Which means, if true, i lost some of you in this story about a paragraph back. Tonight the National Mall has gone to the dogs. Border collies let loose in the Nations Capital on patrol of the socalled geese police to chase away geese who leave a whole lot of droppings on the ground around the monuments making for quite a mess to clean up. When we come back, hes a jazz virtuoso, earning praise from the greats, and hes only 11 years old. Finally tonight, the natural. A young boy with an old soul and a gifted ear who in just five years has gone from plunking out melodies on a keyboard to playing jazz classics on the big stage in new york. He may be pintsized especially behind the grand piano. But he also may be the next big thing in jazz. I recently spent some time with him and thought you might like to, as well. Listen. And forget for a moment that he is only 11. Because at any age, Joey Alexander is turning heads in the world of jazz. In a way, its like watching Michael Jordan play basketball. Where theres just so much freedom, and the sky is the limit. He was born in indonesia. His parents, jazz lovers. When i was in my mothers room, i would listen to jazz. Playing piano since age 6, he is virtually selftaught. Joeys music ultimately caught the attention of jazz legends, like Herbie Hancock and Winton Marsali s. And hes just released his first album. What melodies do you like to play . First was a song by felonious monk. You played felonious monk at 6 . Yeah. Can you play me a few bars of that . Sure, it goes like everybody knows. Joey calls jazz a language. For me, jazz is about freedom. Freedom to express yourself. When you improvise, you make it up slowly. I love playing with other people. You play and ill catch in. It was all the invitation this amateur musician needed. Whats it like being in front of the crowd . Happy and maybe a little bit nervous. I want to take the audience feel good when i play. Youve had a Pretty Amazing life for 11 years old. Thank god. What do you want next . For me, i just want to keep playing. Keep playing includes a gig at the newport jazz festival this summer for joey. Thats going to do it for us on this thursday night. Im lester holt. For all of us at nbc nightly news, thank you for watching and goodnight. Sniempt nbs bay area news starts now. Wild weather pounding the bay area. Our radar tells the story. Still active during this evening commute in certain parts of the bay area. Good evening. Thank you for being with us. Im raj mathai. And im jessica aguirre. Depending on where you work or live, it may have looked or felt like winter today. Blue skies over San Francisco, but then storm clouds in lots of other parts of the bay area. Lets get a live look at pal oh alto. Raindrops on the camera lens a little bit, and the roads sockggy still. And thats rain on the El Camino Real in sunnyvail. We gone right here in studio with meteorologist rob mi ata, who is checking all of this. If youre watching us from San Francisco, oakland or marin county, just partly cloudy skies during the day. But the rain totals almost an inch of rain. Cupertino cupertino. These locations picking up in an been hours time more than the monthly average. You can see san jose at the airport,. 45, which is greater than that monthly average. And we saw that fall between