With scott pelley. Pelley good evening. This is our western edition. In just a few short days america came to know Kayla Mueller and her too short life that was dedicated to helping people in need. So today, when her family confirmed that she had died as a captive of isis, the entire country shared their pain, pain that was visible on the faces of her friends and relatives. Mueller was captured by the Islamic Terrorist Group in syria in the summer of 2013. David martin now on how her family learned of her death. Reporter there is no goodur way to find out your 26yearold daughter has been killed, butm surely an email from isis wither a picture of her body is one of the worst. By monday morning, intelligence analysts had confirmed that it was Kayla Mueller, and that she had died recently, although the exact cause of her death could not be determined. It was a tragic end for a young woman described by her aunt lori lyon as noble beyond her years. She has done more in her incredible 26 years than many people can ever imagine doing in. Their lifetime. Kayla has touched the heart of the world. The world grieves with us. Reporter last spring in this handwritten letter from her prison, she told her parents if you could say i have suffered at all throughout this whole experience, it is only in knowing how much suffering i have put you all through. I have a lot of fight left inside of me. I am not breaking down, and i will not give in no matter how long it takes. Isis claims she was killed last friday when this building was struck by jordanian warplanes on the second day of raids ordered in retaliation for the gruesome execution by fire of a downed jordanian pilot. U. S. Officials said the building was a Weapons Storage Facility located in a compound south ofld the isis strong hold of raqqa. They had no indication Kayla Mueller was ever held in the o building, but could not rule out the possibility she had beenei moved into it without their knowledge. Still, said pentagon spokesman admiral john kirby lets not forget in whose hands this woman died and lets not forget who is ultimately responsible for it, isil. Reporter in an interview today, president obama said Kayla Mueller was one of the hostages the u. S. Tried to rescue with a raid into syria last summer. But it turned out the hostages had been moved just a day or twoy before. Four americans were held hostage at the time, and now, scott, all four are dead. Pelley david martin at the pentagon tonight. Ht david, thank you. Were going to have more about Kayla Muellers remarkable life and that letter she sent home later in the broadcast. President obama vowed to bring her killers to justice. He blames isis, and on the battlefield in Northern Iraq isis is murdering entire villages. Holly williams is there. E reporter in oncepeaceful farmland, these men showed us what they say is a mass grave. How many bodies are buried here . Ed eyewitnesses told us isis killed at least 50 yazidi men here, and though we cannot verify whats buried under this mound, they told us the men were shot one by one and their shallow grave covered in dirt. Did you know these men . T they were all from my village, said naif ibrahim hoda. He believes his uncle and two of his cousins lie dead beneath the soil. How did you survive . We left in the Early Morning before isis arrived, he told us. Later on, they blocked the road, and everyone else was captured. The yazidis were hounded from their homes by isis in august, fleeing to nearby mt. Sinjar where they faced starvation. Its thought thousands of yazidi women were kidnapped and enslaved by the extremists. They cant give the bodies here a proper burial because the front line is just a few hundred yards away and isis still holds the next village. Kurdish fighters known as theme peshmerga are slowly clawing back territory from isis. They believe they can defeat the extremists and prevent more massacres, but theyre outgunned by the militants and frustrated with their american allies. Weve lost more than 1,000 peshmergas, and somewhere around 5,000 have been wounded. Reporter the Kurdish National security advisor Masrour Barzani told us 70 of those deaths were caused by car and roadside bombs, and many of them could have been prevented if his men had armored vehicles. Theyve asked washington for several hundred and have been given just 25. Re of course, they all praise the peshmergas and thank us, but that is not enough. We need the equipment. Reporter what do you say to the families of those men who have died, whose deaths were preventable . These are our heroes. We need to protect these heroes, and i think they are the heroes of the free world, and its the responsibility of the International Community to protect them. Reporter president obama is expected to go to congress this week to ask for new authorization for the use of military force against isis. That authorization is expected to set a limit for the length of the conflict and, scott, it willt, doubtless spark a debate on whether u. S. Ground troops should be deployed. Pelley Holly Williams reporting for us tonight in istanbul. Holly, thank you. Now, moving to another important story, it did stop snowing in boston today, but not before the city was buried again. Nearly 72 inches in 17 days. If folks are not climbing the walls, theyre climbing ladders to clear snow from roofs. Train service stopped, so commuters had no choice but to dig their cars out. Jericka duncan is in boston. Reporter sevenfoot snow drifts piled on the roof of this piano store caused it to break. It happened early this morning when the store was closed. If it wasnt, owner rob norris said the outcome could have been much worse. Im sure there would have been deaths, you know. Reporter more than two dozen roofs have collapsed across state. We experienced how dangerous conditions can be. We have. Reporter we just heard something. Thats the ceiling, yeah. Thats the roof. Reporter so far, the city has had more than 40 inches of snowfall this month, making it the third snowiest february on record with more than two weeks still to go. This is what people are up against. Im 57, and many of these walls of snow are much tallernow than me. Its obvious when you take a look around, it will be a while before people get rid of all this snow, when they find somewhere to put it. The city is using snow melting machines to get rid of 400 tons per hour. Mayor marty walsh is calling on bostonians to help each other. Im asking neighbors out there to please reach out to your neighbors. Ive received a couple of texts from folks that reached out to a neighbor next door, didnt realize they were home ound and needed some food and things like that. Reporter wheres the door . Youre on it. Reporter 65yearold frank harts eightfoot shed is buried under the snow. He has been outside battling the Winter Weather every day for the past two weeks. If you get more snow on thursday, what are you going to do . The same thing ive done always, you know, just put it anywhere i can. Reporter the city is making progress. Boston Public Schools will be open tomorrow and tonight, scott, the National Guard moves in with dump trucks and shovelsat to help remove some of the snow and dig out fire hydrants. Reporter jericka, thanks very much. Boston could get several inches of snow thursday night into friday. After that, another storm is expected to move in on sunday night. In alabama today, many local judges remained defiant, one day after a federal court order made samesex marriage legal. Chip reid is there. Reporter in mobile, alabama, the window was closed today at the office where marriage licenses are usually issued, leave some samesex couples disappointed. Licenses were also unavailable at the rural pike county courthouse in the small town of troy. Probate judge wes allen like any probate office, its not going to be in the marriage licensing business altogether. Weve decided to take ourselves out of that. Reporter out of it completely. Yes, sir. Reporter this was hard for you to do . Well, you know, you dont want to disappoint anybody but at the same time, youve got those deeply held christian beliefs that i do, so it really it really was one that slept well at night when i made the decision, you know, and ive hade overwhelming support from the Community Since we made this announcement on friday. Reporter not surprising, in a state where only 32 support samesex marriage, tied for lowest in the nation. Just yesterday, 54 of alabamaswere 67 counties were not issuing licensing to samesex couples despite a federal ruling to do so. But in a surprising development, 13 judges have now reversed course, leaving 41 counties Still Holding out. One of those changing his mind is judge john enslen whoe of tho announced on his Facebook Page yesterday that Elmore County will not be issuing samesex marriage licenses, but today hee said the dust has quickly settled and it is clear to me that our federal constitution, consistent with the Federal District courts ruling, will be federal interpreted to provide a constitutional right to samesex marriage on a national scale. The next big step comes thursday, scott, when a group of samesex couples go to federal court and ask that federal judge to order the state judge to give them marriage licenses. Pelley chip reid in montgomery tonight. Chip, thanks very much. Well, here we go again. Experts are changing their recommendations about what we shouldnt eat. A Government Advisory Panel has decided we dont have to worry so much after all about cholesterol in our diets. So dr. Jon lapook is here to sort this out for us. Jon, so, the panel says that ch cholesterol is no longer a nutrient of concern. What on earth does that mean . Es tha reporter well, to be clear th the amount of cholesterol in your blood is still important, so the higher the bad cholesterol the higher the risk of heart attack and other problems like that. But what the Committee Found was the amount of cholesterol in your food doesnt necessarily translate to a higher level of cholesterol in your blood. So right now, the current recommendations say people should have less than 300 milligrams of cholesterol indiet a their diet a day. An egg has 200 milligrams. Thats likely to change when the recommendations come out later this year. Pelley so we can start eating all these highley s cholesterol foods again . It doesnt go right into the blood . Reporter absolutely not, actually. Ter abs it turns out theres never a free lunch for dinner. It turns out that the foods that are highest in cholesterol are also high in other bad things like saturated fats and transfats, refined sugars things like that. Overall, theyre recommended people consume more vegetables more fruits, more whole grains lowfat dairy and lean meat and reduce red and processed meats sugary food and drinks and refined grains. Pelley doctor, thank you very much. With measles spreading what should parents know about the safety of vaccines . And the chase is on when the western edition of the cbs evening news continues. 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. 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. Ugh. Heartburn. Did someone say burn . Try alka seltzer reliefchews. They work just as fast and are proven to taste better than tums smoothies assorted fruit. Mmm. Amazing. Yeah, i get that a lot. Alka seltzer heartburn reliefchews. Enjoy the relief. How do i get hotel deals nobody else gets . I know a guy. Priceline negotiator i know this guy. Konohito. And this guy. Who knows a guy. Hey guy. I know a guy in new york, vegas, dallas. Ive known some guys for decades and some, nice to meet ya, lets deal. My competitors may know a guy, but i know over 60,000 guys. And gals. Exclusive hotel deals up to 60 off. Priceline. Com pelley the Measles Outbreak has grown to at least 166 cases in 18 states and the district of columbia. Despite overwhelming evidence that the vaccine is safe, some parents are still not convinced so we asked jim axelrod to find out why. Reporter to understand the antivaccine movement, meet nicholas wildman, 19 years old six feet tall, and still in diapers with severe autism. This is video his parents showed ed bradley on 60 minutes 15 years ago. He played normally. He just said dada. Reporter nikki before the vaccine for measles, mumps and rubella which his parents claim blame for his autism. I should have never had him have that vaccine. Reporter science has discredited the link first floated by a dr. In the journal lancet, in 1998. There is no doubt, not that much, that there is no link between an m. M. R. Vaccination and autism. Absolutely no doubt. M. M. R. Vaccine does not cause autism. It never made biological sense that it would and now we have all the epidemiological studies showing it clearly didnt. The director of the Vaccine Education Center at the Childrens Hospital of philadelphia says since wakefields article, there have been 14 studies looking at hundreds of thousands of children on three continents that show no linkage. Why did dr. Wakefields hypothesis get any traction at all . Because we dont know what the cause or causes of autism was, and now hes got a reason right. Hes got a boogieman. E reporter only in the view of science now, his boogieman has been widely discredited. It was just wrong. Reporter the lancet retracted the paper in 2010. The british medical journal called it an elaborate fraud. And dr. Wakefield lost his license. But still, the fallout lingers as we are seeing 17 years later, with the current Measles Outbreak. The outbreak were seeing right now can be directly related to dr. Wakefields theory . No doubt about it. If you ask parents why is it youre hesitating to get the vaccine, i think many would say i still think its possible this p vaccine might cause autism. Reporter i asked the doctor if there wasnt some satisfaction in being right, and he said no, this is not an i told you so moment, that whenever children suffer there is nothing good about it. Scott. Pelley jim axelrod reporting for us tonight. Jim, thanks very much. Did the u. S. Little League Champions break the rules . Well have that when we come back. Back. [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 . But there is one step you can take to help prevent another serious disease pneumococcal pneumonia. One dose of the prevnar 13® vaccine can help protect you. From pneumococcal pneumonia, an illness that can cause coughing, chest pain difficulty breathing and may even put you in the hospital. Prevnar 13 ® is used in adults 50 and older to help prevent infections from 13 strains of the bacteria that cause pneumococcal pneumonia. You should not receive prevnar 13 ® if youve had a severe allergic reaction to the vaccine or its ingredients if you have a weakened immune system, you may have a lower response to the vaccine. Common side effects were pain, redness, or swelling at the injection site. Limited arm movement, fatigue, head ache muscle or joint pain less appetite, chills, or rash. Even if youve already been vaccinated with another pneumonia vaccine, prevnar 13® may help provide additional protection. Get this one done. Ask your healthcare professional about prevnar 13® today. Pelley police in los angeles had all they could handle last night. For 45 minutes, they chased a suspected car thief determined to escape, no matter who or what got in his way. Heres john blackstone. Reporter as he sped through l. A. s rush hour traffic, the driver of the stolen car tookthe risk after risk. Whoa, right there Reporter Police followed from the air, as did kcbstv reporter stu mundel. There we go oh Reporter Police cars at first held back. L. A. P. D. , not in pursuit. Reporter still the driver sped down residential streets and through stop signs. Look at this whoa there we go reporter even when it seemed the car was so battered it could go no further, the driveron carried on. Wrong side of the road. Whoa whoa okay. There we go. Took two cars out. Hes out, hes trying to oh, hes trying to carjack somebody, and it looks like it looksd like he has a weapon. He does. Hes got a weapon hes got a weapon. Hes trying to carjack somebody, pulling a woman out of the car taking another vehicle. Reporter after the armed carjacking police moved in closer. Hes wedged in there. Reporter as he tried to take another car, officers opened fire. The suspect is down. Suspect is down. Reporter the driver is being treated for injuries that are described as nonlifear threatening. Hes identified as aaron lorda 29 years old, and hes now being held on 100,000 bail. And, scott, no serious injuries have been reported from all of those collisions. Pelley john, thank you very much. There was quite a rumble in las vegas overnight. A Demolition Team brought down the only Clarion Hotel and casin