Reporter officers arrested this 25yearold former marine, eddie ray routh, after a police chase saturday night. They say routh turned the gun on kyle and a friend, 35yearold chad littlefield, murdering them both. His family told them he was having trouble readjusting to life at home after years of war. Thats something kyle spoke about frequently. You dont have an identity. You have to learn a whole new way to act. Reporter kyle volunteered to help vets suffering with posttraumatic stress disorder. He knew the stress of combat as well as anyone. He served four deployments, won seven medals of bravery and killed more than 150 people. He was the deadliest sniper in u. S. Military history. I loved the job, you know, the guys, the camaraderie. It came down to where i had to choose them or my wife and kids. I couldnt have both anymore because id already messed that up. So i chose the family. Reporter on the home front kyle became a bestselling author. In his autobiography american sniper, he writes of shooting so many iraqi insurgents they nicknamed him the devil and placed a 20,000 bounty on his head. To survive all of that only to be killed here at home. Tonight that young marine faces two counts of capital murder, one for each of the men who was trying to help him heal. David . Ryan owens tonight, thank you. Navy s. E. A. L. Chris kyle often said himself how difficult it was for troops to return from war. From serving the greater good, he said, overseas, to serving their own good once home. And this number tonight, nearly 20 of returning troops suffer from symptoms of posttraumatic stress, and theyre the ones we know about. Abcs chief Global Affairs correspondent Martha Raddatz in the middle east tonight reporting in on what just might be an invisible epidemic. Reporter for our veterans, for anyone suffering posttraumatic stress, it is a feeling of powerlessness, numbness, your mind frozen in battles long ago. I couldnt stop thinking about iraq. I really didnt care any more. I just felt empty. I was just a shell walking. Reporter former marine brendan schnitzel is one of 70,000 Service Members in the last decade who have been diagnosed with posttraumatic stress disorder. 70,000. With it can come depression, substance abuse, anger management, suicide. I was constantly feeling anxious. I constantly felt like something bad was going to happen. Reporter it is too early to tell whether ptsd or Mental Health issues contributed to todays horrific murders, but it has happened before. In 2007 a mentally unstable Army Sergeant went on a killing rampage in a combat stress facility at his base in iraq. And retired Staff Sergeant robert miltonberger who received a silver star for saving countless lives in a hellish 2004 battle in iraq was later diagnosed with ptsd. He says he now avoids firearms, fearing he could hurt someone. If i had a gun and someone was threatening me, i could picture me shooting him and i can see the bullets going in him and the blood coming out and all that. Reporter ptsd is not new, but with tens of thousands now coming home, the fear is that we still dont know enough about it. We are in the dark in our ability to treat posttraumatic stress to a level that we can guarantee most individuals who have it can recover from it. And martha joins us now from the mideast tonight where shes spent the decade covering those wars. What struck us today was that chris kyle, known for his outreach, known for helping soldiers traumatized by war. Youve got to wonder if he couldnt get through, what should we be doing as a nation, what do we need to be doing . I think what we have to do is exactly what chris kyle wanted to do. There has to be some sort of outreach to americas veterans. We have to figure out what the problem is. Some of the people in that piece, two of the young men, have been in therapy, intense therapy. Theyve turned their lives around. So it can work, it does work. We cant look at our veterans as victims. We cant look at them all as crazy. Therapy does work. We just have to figure out what kind of therapy and take care of them when they do come home. All right, martha, i know youll stay on this in the coming days and weeks. Our thanks to you tonight. We do move on this evening and to alabama back here at home where it is now day six of the hostage drama. That 5yearold boy being held in an underground bunker. Tonight we learn what his captor is asking for and about the boys condition, why his mother is so worried. Gio benitez in alabama again tonight. Reporter an Alabama Community shaken by a standoff now in its sixth day came together to mourn 66yearold School Bus Driver chuck poland. Mr. Poland was a gentle and kind man. Reporter letters from children read aloud. Tuesday Afternoon Police say 65yearold jimmy lee dykes got on to the school bus demanding two children, shot and killed poland, then kidnapped a 5yearold named ethan, holding him hostage in his homemade underground bunker. Now mr. Poland is an angel. Hes watching over ethan. Reporter also watching overnight, drones. We spotted them this morning flying over the bunker site. Were told dykes has demanded that a reporter be sent down into the bunker to speak with him. The fbi tells us, quote, mr. Dykes continues to make the child as comfortable as possible. Even so, people close to the childs family say ethans mom is devastated and worried because ethan has a form of autism. He has behavior problems, and she doesnt want him to get into one of those moods where hes uncontrollable. Reporter as we told you last night, ethans birthday is this week. He turns 6. So he could spend it as a hostage, david. Gio benitez tonight. Thanks to you. Well turnover seas this evening to one of londons most famous sites. Kirit radia in london now. Reporter chaos erupted as crowds were watching the famous changing of the guard at buckingham palace. A man burst forward brandishing knives holding one to his neck. When he refused to put the weapons down, police moved in taking him down with a taser. Bystanders were stunned by how quickly it unfolded. They tased him and he fell to the ground in a couple of seconds. Reporter tourists captured the drama on their cameras and phones, posting the videos on youtube. Police say the man is believed to be in his 50s. So far they havent released any other information about him or his motive. Were told the queen wasnt home at the time. In the end, nobody was seriously injured. David. Still some terrifying pictures going viral. Thank you. Tonight from turkey, new clues into the death of that American Mother on a trip texting her husband and children photos. Her last text saying shed be home the next day. Last night here we told you about the gruesome discovery. Tonight Nick Schifrin with more on the investigation from turkey. Reporter 33yearold sarai sierra is dead. But the mysteries in her case remain unsolved. Today plainclothes detectives scoured for clues. She died from a blow to the head, but they dont know who killed her or why. Her body was found in those trees right behind me. You can see the police are still here. This is a pretty isolated area. On this side theres a dropoff, on this side a train track. The theory is she was killed somewhere else and her body brought here. Police are combing through hundreds of hours of surveillance video. This is the last time she was seen walking through a mall one day before she was due home. She stayed in this basement apartment. Its a mostly working class neighborhood. One of the intriguing mysteries to this case is why would she leave her cell phone, medical records, even her passport behind in her room. Police say she didnt get caught up in drugs or trafficking and are questioning at least 11 suspects. Sarai exchanged emails with one of those suspects the day she vanished, but hes been released. So police along with the fbi continue to comb through every clue in a case that very much is still open. David . Nick schifrin reporting in again from turkey tonight, thank you. Back here at home in whats become a tradition for the president , an interview on super bowl sunday knowing millions will be in front of their tvs for the big game. A short time ago, he took on two flash points. I want to bring in reena ninan. Reena, the first one involved the boy scouts . Thats right, david. This week the leaders of the boy scouts of america will meet to decide whether to lift the ban on gay scouts and leaders. The president said it should be. My attitude is that gays and lesbians should have access and opportunity the same way everybody else does, in every institution and walk of life. He also took on football on this super bowl sunday, in particular concussion concerns . Thats right. You know, he applauded the nfl for prompt promising to do more on concussions. But heres what he had to say when he was asked what he thought about having his own child play football. Id have to think about it. Its hard to say no to a kid when they have a passion for something. And ive got daughters. They dont have a passion for football. It is a great sport. I am a huge fan, but theres no doubt that some of the concerns that weve learned about when it comes to concussions have to give parents pause. David, he said the nfl is different, that these men, they get paid very well, but that children really need protection against the dangers on the field. Thank you. As you know, well have more on concussions. Our own investigation in moments. But first t super bowl itself. Can you imagine being the parents of those two coaches tonight sh the brothers who take to the field and compete against one another . Tonight those parents already worried about the son who will lose. Good morning americas josh elliott is in new orleans. Reporter as brothers and rivals, jim and John Harbaugh will work opposite sides of the field tonight while somewhere in the super bowl stands a mother and father quietly root for both teams. Jackie and Jack Harbaugh have spent a lifetime guiding their boys to this historymaking moment. Still just last week mom joked that she was hoping for a tie. Well, i think that the nfl changed that rule. I think if it ends in a tie, it will be a tie. Reporter but they know only one team can win, and so only one of their sons can be the winning coach, and at the end of the night, brother will still face brother. Ive given absolutely no consideration to the post game handshake or bear hug or anything else. Have not thought about that for one second, jerry. Have you, jim . I have not. Reporter but mom and dad have thought about it quite a bit. Were going to hug both of them. My thoughts go to that one that will not experience the thrill of victory, and thats where our thoughts will be. Reporter josh elliott, abc news, new orleans. Thanks to josh. Tonight hell be there first thing in the morning for gma. There is much more ahead on world news this sunday night. Getting answers for parents worried about those concussions the president was worried about. The product claiming to make your child safer. Can you believe the packaging . What was changed on this label after abc news began asking questions. Then later tonight on the broadcast, predicting who will score during the commercials tonight. Will anyone be able to tackle betty whites starring role . Were all having such a great year in the gulf, weve decided to put aside our rivalry. cause all our states are great. 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Can it protect against concussions . Reporter Jennifer Brannen is like a lot of moms whose sons play football. She worried about head injuries but supports tyler, her boy. As a mom, you may want to put bubble wrap around them and protect them forever, but thats not going to happen. Reporter now a burgeoning Cottage Industry has emerged online and in Stores Selling products to parents and players who are worried about the risk of football concussions. One company, unequal technologies, has risen to the fore with nfl endorsements i dont feel like im taking a risk. Reporter and three blunt words on every box it sells, Concussion Reduction Technology. Rob vito is the founder and ceo. These athletes need to take control of their own safety. Reporter his products, strips of composite material including bulletproof kevlar, that you glue into a helmet, but some experts are skeptical. The guy would have you believe its his magical material. Theres nothing magical about it. Reporter Dave Halstead is technical director at the southern Impact Research center, one of the leading testing labs for Sports Equipment in the nation. Heres the problem the modern football helmet already offers excellent protection against direct hits, which produce sharp linear forces against the skull. Halsteads testing shows the unequal strips can reduce the severity from certain angles like the front but not from other angles. And doctors believe many football concussions today are caused by shearing Rotational Forces when the head snaps back and swerves around on the neck and the brain slams against the inside of the skull. There is no proof that products like unequal technologys strips protects against those injuries, the ones suspected of frequently causing concussions. So you say Concussion Reduction Technology. Is that what youre doing . Our claim is that we help reduce the possibility of head injury. Thats our claim. We never mention the word concussion. Reporter Concussion Reduction Technology. Exactly. Thats the name of the product. Reporter but youre claiming that it reduces concussions or thats the name of your product . Mmhmm. Reporter it doesnt. Were not claiming that. Reporter even though your product is called Concussion Reduction Technology . Correct. But were not claiming that. One is a name and one is a claim. And our claim is that we help reduce the possibility of head injury. Reporter after that interview, the Company Changed its packaging, actually removing the words Concussion Reduction Technology from the box. David, its now just called crt. They changed the labeling after your nightline investigation. But in the meantime, this is a real concern for parents. It would seem that products like these play into the fears of parents who just really want to make their kids safe. Absolutely. Parents need to read the fine print on these products, see what theyre actually claiming. Learn about concussions to see what science understands about them. And most important, perhaps, advocate for rules changes that will keep our kids safer. But in the meantime, youve been looking into all these products, and no magic bullet. There is no magic bullet for this problem. Terry moran, thanks to you tonight. When we come back, not just the super bowl tonight. Theres the other one unfolding this sunday, the puppy bowl. In a moment, take a guess here, how many people do you think watched this . E do you think watched this . Something unexpected and you see the woman you fell in love with. Shes everything to you. But your erectile dysfunction that could be a question of blood flow. Cialis tadalafil for daily use helps you be Ready Anytime the moments right. You can be more confident in your ability to be ready. And the same cialis is the only daily ed tablet approved to treat ed and symptoms of bph, like needing to go frequently or urgently. 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Believe it or not, 111 Million People tuned in to the super bowl last year, 9 million actually tuned in to the puppy bowl. We were impressed by that. To the other competitors tonight. It just might involve your smartphone. Samsung trying to make a play. This new ad during the game tonight, samsung spending 15 million for a twominute commercial. Paul rudd and seth rogen both showing up to supposedly tape the samsung commercial nor the next big thing. They gave me a phone. They gave me one, too. Where did you get that . They gave to it me because im the next big thing. This makes no sense, man. Are you sure that maybe youre not here to see a guy named sam sung . We want to know which ad is your favorite tonight. When you flip back over to the super bowl. You can let me know. Im davidmuir on twitter. Or let me know on facebook. When we come back, which star said she staged a comeback all because of her super bowl moment . Shes golden. 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Or take aleve, which can relieve pain all day with just two pills. Good eye. And finally tonight here, the superstars of the super bowl. Not the ones on the field, the ones off it. The celebrities who pop up with the ads. Many have made their mark in that moment, others have made a comeback. Heres abcs Abbie Boudreau tonight. Reporter theyre the celebrities stealing the show off the field. Those super bowl ads have a way of launching careers and reviving others. Youre playing like betty white out there. Thats not what your girlfriend said. Reporter betty white credited this 2010 ad for her comeback. Last years treat . Seeing our beloved Ferris Bueller all grown up. He bought it. Reporter and who could forget this Cindy Crawford classic . The supermodel at the height of her fame in 1992 admired for her pepsi can . Is that a great new pepsi can or what . Reporter this year swimsuit model kate upton promises to heat things up. For about 4 million a spot, if theyre not sexy, they better be funny. I got a new boat reporter one things for sure, theres always a breakout star. So who will steal this years show . Maybe the rock. Ladies, got to go to work. Reporter or perhaps psy. Reporter but most of the time the best ones are a surprise. You want the bears and i want the colts but we both win because were in love. Honey, dont talk with your mouth full. Im sorry. Reporter Abbie Boudreau, abc news, los angeles. Still pretty hard to beat betty white a couple of years back. Good morning America First thing in the morning and diane sawyer right back here tomorrow night. Thanks for watching even on super bowl sunday. Ill see you soon. Good night. Next at 6 00. The plan to protect San Francisco from violence tonight is angering residents in one neighborhood. Ravens fans shut out. Why a bar celebrating the Baltimore Team closed its doors today. Well take you live to new orleans where a power outage has stalled the super bowl. Abc7 news at 6 00 starts now. [cheering] ama from new orleans to the bay area. The excitement as super bowl sunday finally arrives. Now a power outage is creating problems at the superdome. Good evening, thank you for joining us. Dan it this strangest thing. Play still suspended. We have Live Team Coverage for you. Lillian kim nisSan Francisco. Sergio is in san jose. Ama we begin in new orleans with katie. What going on at the superdome right now . Not a whole lot of light out there. Reporter who saw this coming . The lights just came back on just now. There will quite a people who have lingered hod moved out of their seats and gathered here, just trying to why sit in your seat in the dark. Now the lights back on and people starting to head back into their seats and the game hoping to resume shortly. The players have been stretching on the side lines and sitting on be tbherch, wondering what they wore going to do. The score is 286. The ravens just scored a little bit after 5 30 your time when the lights just went out. Were learning that Law Enforcement told abc news it was not an issue, just bailed issue. We have a individual grope 2011. Remember that game in december when the lights went out at candlestick . Also, a technical issue. That with a power pole through pg e. So the 49ers have seen this happen before and it has happened again at super bowl xlvii. Who would have thought . So, that power out until just a few moments ago here at the superdome. All the while, fans were being asked to stay