Conducted under the cover of darkness, a team of Delta Force Commandos took out roughly a dozen isis fighters, including a key isis leader, the man described ass head of the terror groups Lucrative Oil operations. Abu sayyaf was his name, known to be a key associate of abu bakr albaghdadi, the leader of isis. As david martin reports, this was a highrisk operation for the u. S. Military which apparently yielded high rewards including the capture of sayyafs wife. Reporter the Delta Force Commandos went into syria aboard black hawk helicopters. Their target was a building where abu sayyaf lived with his wife and oversaw black market oil operations, a major source of isis income. One pentagon official called him the chief Financial Officer of isis. Isis Oil Facilities have been frequent targets of the u. S. Led pomming campaign, but this time, the delta commandos intended to capture the man who ran the operation. A firefight broke out and according to pentagon officials some of the isis fighters attempted to use women and children as human shields. About a dozen enemy fighters were killed in fighting that sometimes involved handtohand combat. Pentagon officials said there were no reports of civilian casualties and no americans were killed or wounded although there were bullet holes in some of the aircraft. The commandos found abu sayyaf and his wife on the top floor of the building. According to pentagon officials he attempted to resist and was killed. His wife was captured and taken back to iraq, along with a young iraqi woman who officials believe had been enslaved by abu sayyaf. The young woman will be returned to her family. The wife will be interrogated. Officials believe she knows about the abuse suffered by kayla mueller, american aid worker who died earlier this year while being held hostage by isis. Defense secretary carter called the killing of abu sayyaf a significant blow to isis, although no one expects expects it to cripple the organization. This was the First Successful commando raid into syria and they brought back cell phones and laptops which will now be used to track down other isis leaders. Jim. Axelrod david martin at the pentagon tonight. David, thank you. Tonight, amtrak is agreeing to abide by an emergency order issued by the federal railroad administration. The order will expand a speedrestriction system that might have prevented this weeks deadly derailment in philadelphia. This comes as the f. B. I. Checks out the possibility somewhat some sort of object hit trains windshield just before the crash. Heerd kris vlean cave. Reporter ew n video from a Security Camera showed the speeding train as it careened off the traction. The accident prompted federal regulators to order amtrak to immediately complete installation of automatic train control that could remotely stop a speeding train assess speeds approaching curves and add speed limit signs. The nash asked the f. B. I. Investigate damage to the windshield of train 188s engine to determine if an object struck the train. Board member robert sumwalt. What damage patterns to that windshield are we having the f. B. I. Look at . There is a circular pattern that emanates out just a bit. Reporter in an interview with the n. T. S. B. , an assistant conductor recalled hearing a radio conversation between engineer Brandon Bostian and another train operator about objects striking their trains. Two other trains in the same area a washington, d. C. Bound amtrak train and a Regional Commuter train known as septa both appear to have been hit by what witnesses describe as a projectile shortly before the crash. Septa Officials SayTransit Police get about one call a week in that area for people throwing things at passing trains. Monica williams was on the septa train that was hit. There was a loud bump. The train immediately slowed. Reporter as they sat on the tracks, train 188 raced by. Minutes later she learned it draild. Now theres another train a few minutes ahead and youre telling me its off the tracks. So lot of feelings. And then a little bit of frattitude too. Reporter investigators still dont know what caused the amtrak train to rapidly accelerate to speeds more than 100 miles per hour, and the trains engineer told the n. T. S. B. He does not remember the events leading up to the crash. Longtime friend james wear called bostian shortly after the derailment. He was in shock and he wasnt remembering much of anything. He just couldnt remember. Reporter and weve learned the Philadelphia DistrictAttorneys Office is gathering information about the derailment but jim, it is too early to say if that will result in a criminal investigation. Axelrod kris van cleave at philadelphias 30th street station. Kris, thank you. Two years and a month after the Boston Marathon bombings there is a palpable sense of relief in the city tonight now that the penalty phase of the trial has ended. Dzhokhar tsarnaev is headed for death row but as don dahler reports, it will be years before the case is closed for good. Reporter Dzhokhar Tsarnaev has not seen the last of the inside of a courtroom. He is about to begin making his way through one of the most convoluted journeys in the legal system Death Penalty appeals. Many of the people most affected by his actions like liz norton, feel a sense of closure. I have to watch my two sons put a leg on every day so i mean, i dont know closure, but i can tell you it feels like a weight has been lift offside my shoulders. But Boston College law professor roger bloom says the sawingal not be over soon, if ever. The likelihood of him actually being killed by the the state is minimal. Reporter so this could go on for decades. Thats the tragedy i would say, of this, whether or not he will actually be killed pie the government in this case is somewhat problematic. Im not sure it will ever happen. Reporter thats why Martin Richards family urged prosecutors to settle for life. In an essay published april 17 they wrote we hope our two remaining children do not have to grow up with the lingering painful reminder of what the defendant took from them which years of appeals would undoubtedly bring. In fact, the average period between sentence and execution nationwide in 2013 was 15 years. Executionses are even more rare in federal cases. Since congress reinstated the Death Penalty in 1988, 71 people have been put on death row yet only three have been executed, the last in 2003. Timothy mcveigh, who was convicted of blowing up the murrah Federal Building in Oklahoma City in 1995, was executed four years after sentencing, but only because he dropped his appeal. Tsarnaev has given no indication he intends to do the same. The first appeal is automatic. His attorneys will likely ask for a new trial and barring that, will begin a series of appeals all the way up to the supreme court. They can only appeal legal issues in the case, not the actual facts of the case. But, jim legal scholars say there is one issue where they might have a chance, and that is the change of venue. Despite fact that theres hardly a person in this city that didnt suffer something from the boston bombings, he refused to move it out of town. Axelrod a key witness to the marathon bombings never took the stand but his photos did help persuade the jury, and don will be back with that story a little later in the broadcast. Now to nepal where all eight bodies have been recovered from the site where a u. S. Marine helicopter crashed tuesday while delivering aid. But as seth doane tells us, investigators still do not know why the chopper went down. Reporter the crash site was discovered after a threeday search high up in the himalayas. The wreckage of the huey was found at 11,200 feet, located halfway between kathmandu and mt. Everest. The six u. S. Marines and two nepalese soldiers on board had been part of the wider humanitarian aid mission providing relief to quake victims in nepal. The family of captain chrostopher norgren from kansas have been told hes among the missing. His father ron. Faith is going to pull my wife and i through this, and i hope that the faith of the families will pull them through too. Reporter also believed to be on board is captain Dustin Lukasiewicz from nebraska, and Lance Corporal jake hug of arizona had just called his mom on mothers day. On fridays, president obama said our prayers remain with the families. Sometimes those in uniform gate attention only when theres a battle, but they do so much more than that, and it can involve great risk, great sacrifice. Reporter recovery effort will resume with daybreak in nepal, but just reaching the wreckage means battling high winds, subzero temperatures, and rugged terrain. Jim, the search effort had to be curtailed last night because in the words of one u. S. Military commander, they simply could not afford to put any more Service Members at risk. Jim seth doane covering for us tonight in beijing. Seth, thank you. Egypts former president Mohammed Morsi has been sentenced to death. The crime escaping from prison during the overthrow of hiewb in 2011. Morsi became egypts first democratically elected leader but was then overthrown himself in a coup two years ago. A large section of the plains is under the threat of strong tornadoes tonight in kansas, nebraska, oklahoma, and texas. Lets breng in meteorologist lauren casey of our minneapolis station wcco. Lauren, that is a lot of land and a lot of people threatened by dangerous weather. It is indeed. And significant weather at that. The threat of baseballsized hail and strong tornadoes is looming over parts of texas oklahoma kansas, and nebraska this evening and tonight. Over two Million People are within a moderate risk area, which includes Oklahoma City, and wichita, kansas. Strong wind sheer is creating an environment cob ducive to supercell or rotating thunderstorms. So the threat of most concern is the tornado threat with a few strong and longlived tornadoes possible. Moderate is the fourth highest threat level on the fivetiered scale. Major cities of dallas and kansas city, the tornado threat is less enhanced but strong damaging winds and large hail is still possible late tonight. Axelrod lauren casey with the dangerous weather forecast. Lauren, thank you. A man accused of shooting at George Zimmerman monday in florida is now out on bond. Matthew apperson is charged with aggravated assault for shooting through zimmermans car window on a busy street near orlando. They had been involved in a road rage incident last september. Zimmerman, was found not guilty of killing Trayvon Martin three years ago. The Atlanta Hawks bounce back from a miserable year on and off the court, and a blind pole vaulter raises the bar when the cbs evening news continues. But when i started having back pain my sister had to come help. I dont like asking for help. I took tylenol but i had to take six pills to get through the day. So my daughter brought over some aleve. Its just two pills, all day and now, im back aleve. Two pills. 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You should tell your doctor if you have a heart condition or high Blood Pressure before taking it. Grandfather symbicort could mean a day with better breathing. Watch out, piggies child giggles doctor symbicort. Breathe better starting within 5 minutes. Call or go online to learn more about a free prescription offer. If you cant afford your medication, astrazeneca may be able to help. Axelrod Blue Bell Ice Cream is now laying off more than a third of its workforce. More than 1400 workers are being let go after a listeria outbreak that killed three people and halted production last month. Business couldnt be any better for the Atlanta Hawks. Last night, the hawks wrapped up their secondround n. B. A. Playoff series beating the washington wizard. They now move to the Eastern Conference Finals for the first time ever. As Mark Strassmann reports this is one impressive repound and not just on the courts. Lets go, hawks. Reporter ask fans here, the hot ticket in hotlanta is now the hawks. The n. B. A. s comeback franchise. Its nice to have a Home Town Team i can be proud of. Reporter but that almost ended before season began. Charged internal team email surfaced. Owner Bruce Levinson wrote about hawks fans levinson eventually decided to silent team. General manager danny ferry also read out loud from a scouting report that worried one player had a little african in him. Hes on indefinite suspension. Steve koonin is the hawks c. E. O. We made a mistake. We apologized. We took the actions. Were building through basketballs in the community. It is a ride that is shared together. Reporter the franchise reinvented and rebranded itself. N. B. A. Coach of the year Mike Budenholzer has taken a roster of role players deep into the playoffs and produced four allstars. 19 straight regularseason wins, a franchise record, helped bounce basketball apathy out of atlanta. We play as a team but we have allowed social voice. Reporter it also seems part of your success is not taking yourself too seriously. This is sport. This is game. This is fun. Reporter this seasons attendance social media viewership all hit record highs. Their Facebook Page add almost 250,000 fans. Instagram followers jumped 415 . Last month the franchise sold for 850 million. If they can get past lebron james and the cleveland cavaliers, this team will earn a trip to the n. B. A. Finds. Mark strassmann, cbs news, atlanta. Axelrod up next, the photos that helped convince a jury to show the marathon bomber no mercy. To you, theyre more than just a pet. So protect them. With k9 advantix® ii. Its broadspectrum protection k ills fleas ticks and mosquitoes too. K9 advantix® ii. For the love of dog™. [announcer ] what if one stalk of broccoli could protect you from cancer . What if one push up could prevent Heart Disease . [man grunts] one wishful thinking, right . 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In the trial prosecutors used the work of a photographer to demonstrate the chaos and carnage of the moment. Here again is don dahler. Reporter be it the seals of nantucket stars above yosemite, or the skyline of boston what bill hoenk prefers to take pictures of is beauty. We do have a few specials tonight. Reporter but what the waiter and amateur photographer is best known for now is anything but. He was 50 feet away from the Forum Restaurant when the bombs went off. explosion i forgot everything, and i just started taking photographs. I felt it needed to be done. Reporter frame after frame captured the devastating effects of dzhokhar and tamerlan tsarnaevs terrorist attacks. In the the midst of screams and chaos and carnage hoenk who never thought of himself as a photojournalist, somehow remained calm. I was just shooting. I wasnt scared. I was extremely conflicted taking the photographs at the same time. I just kept telling myself, stop thinking, stop thinking, just shoot, just shoot. You need to do this. Theres no one else around thats doing this. You need to do this. Reporter you discovered something in yourself that you didnt know you had. I guess you could say that. Reporter prosecutors used hoenk to transport the jury on to boylston street that day to show what home made bombs can do to bodies and lives even bodies not physically harmed. Do you think youll ever get those images out of your head . No, absolutely not. Reporter theres a very, very famous photograph from the vietnam war by eddie addams of an execution and it won him the pulitzer but he said later in life that image haupted him his whole life. Do you understand that . 100 . I see that little boy every single day and its not going to go away. Reporter that photo of threeyearold leo woolfenden, made the cover of time. I was sad for him. I was sad for his family. I was sad for everyone that i photographed. Reporter maybe its for that reason that hoenk has returned to the marathon every year since not to relive the horror that it was but to honor the beauty that it is. Don dahler, cbs news, boston. Axelrod american pharaoh is one step closer to the triple crown actually, make that 9. 5 furlongs closer. The Kentucky Derby winner took the preakness today in very muddy conditions. If he wins the belmont in three weeks he will become the first triple crown winner since affirm in 1978. Normally, they dont allow dogs on the mode poedium at the State High School track and field championship in texas but today they made an exception. Thats Charlotte Brown with her service dog, vader. Brown, who is blind took bronze in the pole vault. She counts her steps down the runway and plant the pole when she hears a faint beep. Call it bronze if you want, but thats nothing but gold to me. Still ahead two women find they share more than an interest in writing. They share a mother. Meals. 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Mark albert with sister whrors didnt upon each other existed until they found each other by chance in the classroom where they both signed up for the same course. Feels like a fairy tale. Reporter Lizzie Valverde and katy olson still marvel at the coincidence, the luck, the fate. What are the odds . Impossible to compute. Reporter their sibling stories began when both signed up for a writing course at Columbia University in 2013. Neither could imagine tale they would end up telling fpght its the first day of class youre doing introductions. When did it dawn on you that you could be related. She said she was from new jersey. She said she had a child. And when she followed up with a rapid fire more detailed personal questions were you given up for adoption in Tampa Florida to a woman named leslie, i was like, whoa, whoa, whoa the room kind of froze and i said is this real life. Reporter lizzie had already found their mother, leslie parker, a few years earlier. We spoke with her by phone in rhode island. If you didnt believe in a higher power you absolutely have to believe in one now because its basically a miracle. Reporter parker was just a troubled teenager when she gave up the girls for adoption at birth, a year apart. 35 years later her voice still breaks. I wanted to give them the best possible future they could have, and it wouldnt have been with me. As sad it is to give up your own children, i felt that was the best gift i could give them. Reporter in the next few days, the mom who gave her girls a selfless gift will meet katy for the first time. A lot of sacrifices were made for me to be sitting where i am right now, the largest sacrifice conceivably ever, and so i really i never forget that. Reporter this familys next chapter begins monday when lizzie graduates from columbia with a degree in creative writing. Her longlost mother and sister by her side. Mark albert, cbs news, new york. Axelrod and thats the cbs evening news for tonight. Later on cbs 48 hours. For now im jim axelrod in new york, and for all of us here at cbs news, thanks for joining us and good night. Captioning sponsored by cbs captioned by Media Access Group at wgbh access. Wgbh. Org