Little things called life. Just keep swimming. The little seal who could. Surrounded by killer whales, the clever pup, and the daring escape. But first the nightline 5. Pa lifetime of your dogs nutritional needs all in one. Purina one. Healthy energy all in one. Strong muscles. All in one. Highly digestible. And a taste he loves. All in one. Purina one smart blend is expertly blended with 100 nutrition. 0 fillers. Always real meat number one. Lifelong, smart nutrition. Its all in one. Purina one. Number one in just 60 seconds. Good evening. We start here tonight with what doctors are calling a medical miracle. Sit a by turns horrifying and moving story that involves a 16yearold boy infected with a rare braineating parasite. His doctor told the parents to say their final goodbyes. But then a desperate phone call and a frantic 30minute drive in pajamas may have saved the day. Its the classic stuff of summer. Kids cooling off in water parks, lakes, streams. But beneath the surface of these idyllic scenes there can be something genuinely terrifying. A common parasite thats been called a braineating amoeba. Infection is rare but 97 of people who get it die. Hes currently walking, talking. Its a miracle. Reporter 16yearold sebastian de leon beat the incredibly bad odds and survived. We are so thankful that god has given us the miracle through this medical team and this hospital for having our son back. Reporter a few days after swimming in a body of water on a private property in southern florida, sebastian was rushed to the hospital on august 7th with an excruciating headache, squeeze queasy, sensitivity to light. Doctors at Florida Hospital for children at first thought his symptoms looked like meningitis but tests revealed something much worse, a parasite. The family immediately within four hours i had to tell them to say their goodbyes. I had to tell them, tell him everything you want to tell your child, because i dont know from the time i put him to sleep to the time i take the tube out will he wake up. Reporter doctors made a crucial phone call to fatherson team todd and michael mclaughlin, who distribute a lifesaving druggiveavido. I said, get in the car, go to the office, get the drug, bring it to the hospital right away. Reporter michael was less than 30 minutes away from the hospital. My mind went into one fear. Because i know how deadly the amoeba is. Then excitement. I think my adrenaline just went pumping from there. Id already picked up the keys, was in my car. Reporter he jumped into his car in pajamas, no time to waste, because the parasite eats away at the brain so quickly. By the time i dropped it off, it was just relief. I knew that this would definitely be one of the quickest times theyd received the drug. Reporter doctors administered the drug and then watched and waited as sebastian lay in a medically induced coma for three days. We woke him up. And we decided to take the breathing tube out. And within hours he spoke. Reporter the vast majority of people who get infected with this amoeba are not so fortunate. Ponds are host to a deadly amoeba that claimed the life of a local teenager last year. Whose daughter was dead the minute she jumped in the water, she just didnt know it. Looking into a deadly amoeba infection. Reporter out of the 138 known cases in the u. S. In the last 50 years or so, sebastian is only the fourth survivor. The third, kalie hardic. Like sebastian, kalies troubles began with a seemingly lowrisk summer outing to a water park. They had swings in the water you could swing on. They had like this jungle gym thing. These square blocks you can jump around on them. Reporter a few days later kalie came down with headaches, vomiting, and a fever. All of a sudden the headache just started getting worse. Reporter when her eyes rolled back into her head, kalie was rushed to arkansas childrens hospital. Doctors warned kalies parents that she may only have a few days left. Without a proven treatment course, they tried something new. They induced a coma, they reduced her body temperature hoping to slow the parasite which thrives in high temperatures, and they gave her a cocktail of drugs including impavido, similar to what ended up saving sebastian. A month later she was out of the coma with a long road ahead of her. With therapy she was able to relearn basic skills. She began to walk and talk, saying hello to her mom again. When i was able to first say that first word, i was so excited. I was just happy. Reporter dennis kyle is a parasite researcher whos been studying this bug since the early 80s. He says the parasite enters through the nose, crosses the nasal lining into the sinuses, and finally invades the front brain where it starts eating away at the tissue. It could be from swimming, dunking your head, ingesting water into your nose. Reporter however, there is a lot that scientists do not know. For example, why some people get sick and others dont. As if its numbers of amoeba, is it the persons immune system . Theres nothing that really ties a string between getting infected and not getting infected. Reporter one of the reasons why so many people do not survive this infection is because they are misdiagnosed and they simply run out of time. Which is what happened with 11yearold jordan snellski. He loved to make you laugh and smile. He had the most amazing smile. Reporter his parents, steve and shelley, say their son contracted this deadly parasite while staying at a fivestar resort in costa rica. By did horseback riding, zip lining. The next to last day, we swam in one of the pools at the resort. And the pool had water slides. And it was warm water. It was hot springwater. Reporter the next day jordan got a headache, then spiked a fever and started vomiting. He was diagnosed with meningitis and given antibiotics. He started having hallucinations. He didnt know who he was. He didnt know who we were. He didnt know where he was. Then he had a seizure. They brought in the icu team. They moved him downstairs. He never regained consciousness. They did some surgery. Thats when they detected in a sample the amoeba. Reporter finally, the correct diagnosis. But it came too late. He died wednesday morning at 6 30 a. M. , six days and 12 hours after swimming. Today the snellskis are turning their own pain into awareness for other families. Theyve started a foundation in honor of their son with the hopes of educating other parents and doctors about the disease. Our fear is there may be more cases out there that are misdiagnosed or diagnosed as something else. The signs of this infection are the same as for meningitis. So headache, maybe confusion, stiff neck. Reporter medical experts agree parents should take children to the doctor if they see these strange symptoms, but they emphasize this deadly infection is exceedingly rare. Should we be thinking at all about prevention . I used to say, its like getting struck by lightning. But getting struck by lightning is 10 times more common than getting this infection. So i shouldnt be worried about letting my kids swim in these bodies of water or swimming in one myself . You should worry. You should worry, do they know how to swim . You should worry about e. Coli which is common. Reporter as for sebastian, the 16yearold in florida, hes still in the hospital but doctors say hes making progress and his family is hoping for a full recovery. Hes a very energetic, adventurous, wonderful teen. And we are so thankful for the gift of life. Next, what do Elvis Presley and Caitlyn Jenner have in common . Youre about to meet her and hear the extraordinary story she has to tell. Life lessons for out in the wild from a little seal that could. Theres no one road out there. No one surface. No one speed. No one way of driving on each and every road. But there is one car that can conquer them all. The mercedesbenz cclass. Five driving modes let you customize the steering, shift points, and suspension to fit the mood youre in. And the road youre on. The 2016 cclass. Lease the c300 for 369 a month at your local mercedesbenz dealer. But grandma, we useo charmin ultra softsoft. So we dont have to wad to get clean. Mmm, cushiony. And we can use less. Charmin ultra soft gets you clean without the wasteful wadding. It has comfort cushions you can see that are softer. And more absorbent, and you can use up to 4 times less. Remember, thats charmin in there. No wasteful wadding we all go. 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Ryan ruelas no new education cuts, and no new taxes. Reagan duncan vote yes on 55. Sarah morgan to help our children thrive. Reagan duncan vote yes on 55. Amazing sleep stays with you all day and all night. Sleep number beds with Sleepiq Technology give you the knowledge to adjust for the best sleep ever. The time is now for the biggest sale of the year, where all beds are on sale save 50 on the labor Day Limited Edition bed. Know better sleep. Only at a sleep number store. There is a revealing new memoir out tonight from a woman with an epic love life. Linda thompson dated elvis and walked down the aisle with bruce jenner back in the day. And thats just part of her story. Heres abcs Chris Connelly. Ladies and gentlemen, Elvis Presley and bruce jenner have left the building. Reporter ah, but shes here. Linda thompson. Chronicling with empathy and deep feeling days with Elvis Presley and the person we now know as Caitlyn Jenner. I think more than anything its been a relief for caitlyn to be able to emerge as her true self. For the rest of us we love her, we honor her, we respect her. But when i first met her, she was in a bruce jenner body. He was just an incredible person. Still is. Reporter wed in 81. By 1985, they were raising sons brandon and brody here in malibu. You say this was the happiest time of your life . The very happiest time of my life. My happiness was complete. Until that day when my remarkable husband came to me one day and said, i need to tell you something about myself. Reporter linda feared it was an affair. It proved more consequential than that. He said, i identify as a woman. It was effortshattering. It was devastating. People cant understand. You must have had some kind of idea. No, naud da, never, nothing. Reporter they had proclaimed the joys of their union to the world at large. At first linda says she couldnt help but cry out in shock and anguish. I said, have you look in the a mirror . Because youre not only a man, youre the epitome of the ideal man. Because in my ignorance and in my naivete, i thought maybe this is something we could fix. To say that i was a blithering, pathetic idiot at the time would not be an overstatement. Reporter they separated and would divorce. Jenner began hormone and hair removal treatments. One day the boys came home from a visit to their fathers house. Mommy, we saw daddy get out of the shower and daddy has boobs. My heart stopped for a minute. And i said, well, daddy hasnt been working out as much as he used to. When you stop working out and youve developed a big muscle, muscles become flabby, so thats probably what you saw. Reporter later linda would wish jenner all the best with marriage to kris kardashian. I was so elated that bruce was going to be happy. I moved on with my life. Reporter yet linda says her sons felt neglected by their father, whom she says for years was not a presence in the lives of brandon or brody. No matter what you are going through what kind of turmoil you are experiencing in your life, if you have a child, be a parent. You know . So theres really no excuse for that. But its still forgivable. Reporter jenners rep told abc news caitlyn was unavailable for comment. I was there for the first gig. Reporter yet all of it possibly the backdrop for this exchange with brody, a reality star via the hills from keeping up with the kardashians. Its interesting to watch how you are with the girls. Yeah. Well. Because its something im not really used to. You werent around. I was a kid. Nows not the time to talk about it. Reporter it was 2012, linda writes, when she told brandon, who told brody, about their fathers gender dysphoria. After so many years of silence. They have since said, mom, thank you for not telling us. Because i think we needed time and experience and life to understand different circumstances. Reporter those experiences with jenner, her time with elvis, and much more, all vividly captured by linda in a little thing called life. In her glowing youth, Linda Thompson was a College Senior and pageant standout in memphis. Where in 1972 she met elvis, then 37, at a movie theater. And you cant remember the movie . No, would you be able to if Elvis Presley were sitting next to you . Reporter right there as the film screened things progressed at the rapid rate in the elvis classic cant help falling in love with you. But i cant help falling in love with you if you want to know what it was like to kiss Elvis Presley, just take two big fluffy marshmallows out and with the sweetness and the softness, kiss those marshmallows. He had marshmallow lips. Reporter moving into graceland, linda was by his side for four and a half years. When the king of rock n roll turned 40, he didnt like the view. He started to do what we all do when were standing in front of a mirror. What if i just what about this . I said, honey, youre fine, youre gorgeous, are you kidding . But he would not be satisfied until he had talked someone into giving him a facelift. Reporter 24 7, 365, linda was elvis lover, confidant, confessor, and his caregiver. He said, ill probably only admit this once, but i have a selfdestructive streak. It was evident in a lot of things that he did. But particularly in the way that he abused his body with prescription medication. Reporter it would all end sadly in San Francisco during november 1976. His druginduced spiral compounded by infidelities that he would not own up to. And he would get tears in his eyes and grit his teeth. I love you in case you ever read or hear about anybody else that im with, just know, they dont mean anything, i love you, i dont love anybody else, youre my girl. Reporter the love poems shed write for elvis eyes only leading her two decades later to a successful career as a song lyricist. Part of the inspiration for this oscarnominated song from the bodyguard. Stay in my arms i drew upon my experience with elvis, who was the male diva of alltime, and difficult, and thus the line stay in my arms if you dare. Because theres a challenge there. When youre with someone who is that famous. And i never knew love like ive known it with you, which i certainly had not known love like i knew it with elvis, before or since. Reporter now 66, still in her malibu home, linda finds the loves of her past still reverberating in her day to day. Caitlyn and i have talked about had she revealed herself 30 years ago, there would not have been the education surrounding the issue today. There would not have been the understanding and the tolerance. Caitlyn is trying to do as much as she can to open peoples eyes. Her hearts in the right place. I have since said to her, you know, youve got to give yourself credit, you kicked manhoods butt. Reporter for nightline, im Chris Connelly in malibu, california. Up next, one little seal displaying lifesaving ingenuity in the face of killer whales. At the the lincoln summer iits time to relax. Nt from the moment you take your foot off the brake, the brake stays engaged and you stay put. Taking the legwork out of stop and go traffic. And even hills. Thats the more human side of engineering. Hurry in for limited time offers during the final days of the lincoln summer invitation sales event. Lease a lincoln mkx for 349 a month or get 0 apr for 60 months and 1,000 dollars summer invitation bonus. Trust number one doctor recommended dulcolax constipated . Use dulcolax tablets for gentle overnight relief suppositories for relief in minutes and stool softeners for comfortable relief of hard stools. Dulcolax, designed for dependable relief mobility is very important to me. 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