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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Twice as much vitamin d. Which up to 90 of people dont get enough of. Ohhhhhhh. The sunshine vitamin ensure now has 2x more vitamin d to support strong bones. Ensure. Take life in. And the wolf was huffing and puffing. Kind of like you sometimes, grandpa. Well, when you have copd it can be hard to breathe. It can be hard to get air out, which can make it hard to get air in. So i talked to my doctor. She said. Doctor symbicort could help you breathe better, starting within 5 minutes. Symbicort doesnt replace a rescue inhaler for sudden symptoms. Symbicort helps provide significant improvement of your lung function. Symbicort is for copd, including chronic bronchitis and emphysema. It should not be taken more than twice a day. Symbicort contains formoterol. Medicines like formoterol increase the risk of death from asthma problems. Symbicort may increase your risk of lung infections osteoporosis, and some eye problems. 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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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