From the fight of her life. And the golden girl, 49, but with the heart of a giant. Simone biles goes all out to solidify her status as the best in the world. But first, the nightline 5. Good evening, thanks for joining us. Its been two months since that horrific massacre at the pulse nightclub, but for those who survived, the heart ache is still fresh. We traveled back to orlando to followup with those loved ones whose lives were forever changed. One grieving mother turned accidental activist. Speaking out for gun control in the midst of this contentious political season. Vowing to turn her tragedy into triumph. Heres a picture of his birthday. He was one of the good ones. You would have loved him. As your neighbor, as your son, as your cousin. You would have loved him. Because he was what we want to be. Reporter for christine line nen, life will never be the same. So this is unfortunately, what youre left with when your son suddenly gets massacred. Your space. Here, inside her living room, shes surrounded by the belongings of the son she lost. I just really shoved everything in wherever i could find a space. I dont want to get rid of his things. Theyre so much a part of him. This is all i have. This is what he loved. Reporter its been two months since that frenzied morning when the world saw this confused and frightened mothers face for the first time. Well, they said theres a lot of reporter her only son, christopher, and his boyfriend, juan guerrero, gunned down, among the 49 killed at the gay nightclub pulse. I called him last night at 6 00 and i left him with, i love you. The crush of cameras now gone, but the city of orlando, still reeling from the deadliest mass shooting in modern american history. 62 days later, its just as easy to legally purchase an assault attention on the high capacity assault rifle. Yes. The type of weapon that was used . Right. No one needs a highpowered weapon. No one. Reporter the gunman managed to wound victims with more than 200 bullets. Christine and so many others, learning the gruesome details of their loved ones murder in autopsy results released just last week. Why is it so important for you to have that information . Well, i need to know, even though it haunts me tt slaughtered and his entire torso was tore up with seven to nine bullets. So many shots, so quickly, so easily. And that he legally bought that high powered weapon just one week before the shooting. Reporter one last victim still clings to life in the hospital all these days later. But the damage left behind, not just physical. The emotional scars are fueling the nations outrage, and control. But despite a passionate Senate Filibuster and that dramatic sitin on the house floor led by congressman joe lewis, every single piece of legislation has since failed. We dont know who is going to be the next mass shooter. All we can do is try to protect ourselves from this type of weapon, so that when they do get their fuse lit, that maybe we can overcome the quickly. Reporter she echoed that sentiment in front of thousands at the Democratic National convention, supported by two of her sons friends. That love always trumps hate. Reporter her home state of florida, now a battleground, in every sense of the word. Shes been campaigning with progun control Senate Hopeful patrick murphy, working to unseat republican marco rubio. We could solve this. And we can solve this by this for the many survivors of the pulse rampage, the emotional wounds only seem to deepen. Twobyearold tiara parker was shot that night, after what started out as a night out dancing with her cousin and a close friend. I met with her just hours after she was released from the hospital. Can you see the holes . Reporter those are the bullet holes . Yes. Thats unbelievable. Reporter for three hours, the trio was trapped in the nightclub bathroom. So the bullet went in there . Came out of my back. Reporter and then a chilling moment. Coming face to face with the killer. I guess he must have thought i died with my eyes open. And i just kept staring at him. From then i thought, he was going to shoot me in my face. But i was just sitting there and i just stared at him. Then after he got up, you just hear him say, oh, yeah. Reporter she and her friend patience carter, managed to survive the horror, but her graduated high school, died that tragic night. Im pushing through as much as i can. Reporter earlier this week i checked in on her in her hometown of philadelphia . Describe the pain. I feel like my lungs are caving in. Like theres no light anywhere, im just spinning in one circle. Thats how i feel. Reporter but even from the depth the despair shes risen to help others. Last week she appeared on stage with jessica alba for the teen choice courage award. Tonight we stand together with these teens, united in our call for peace, and an end to this violence. Reporter but even as shes recognized for her heroism, the unrelenting cycle of gun violence continues. A man was shot three times in north philadelphia. Reporter two weeks ago, another of her beloved cousins murdered. 24yearold Donte Williams killed by an unknown gunman. Hey, kuz, and hug him. I dont think anybody understands. They were my close knit. They meant everything to me. I seen donte two days before he was killed. As she was breathing, i try to stay focused. Sleepless nights, recurring nightmares. Tiara experiencing the classic symptoms of posttraumatic stress. She said shes still find the right treatment. As for christines healing process what i have found that has. The most cathartic, believe it or not, has been being around christophers friends. I loved them all before anyway. I was always stealing his friends on facebook. Hed say, mom, stop stealing my friends. I said, i wont say anything creepy, i promise. Reporter on this night, christines hanging out with some of her sons closest were out with her son and juan that night at pulse, but managed to run out when the shooting began. Youre two months out, what goes tlur your mind . Not that i escaped death, that i was lucky in any way, but that two of my best friends did not escape death. I never want this to happen to anybody else. Reporter which is why brandon and some of christophers other friends created the drew project, to help lgbt gay people really struggle to survive every day, for someone to come to our home, where we feel safe, where we love each other and protect each other and harm us, if thats not a rallying call, then i dont know what else we need. Reporter turning pain into purpose. When this matures, its going to have a rainbow bark. Reporter planted in memory of her son. Christophers blooming corner, with flowers and rainbows in honor of him. Im not the same. On june 12th, i became a different christine. One thats going to be more powerful in some ways, but so lost and empty in so many ways. Of course our hearts go out to all the families touched by this tragedy. Up next for us, a former brawny beauty about to make her olympic debut. And later, simone biles sticks the landing in rio. Looks right to me. Shouldnt it be clear clearly. It is time to get a great deal and a reward card on this turbocharged jetta. Gotta make room for the 2017 models. It is a clarence event. Why is that so hard for people to understand . It seems clar to me. Clear to me. Ready for a test drive . Volkswagen model year end event. Hurry in for a 1,000 volkswagen reward card and 0 apr on a new 2016 jetta. Hey, honey . Yes, dear . Youre washing that bakedon alfredo by hand,right . Yes, dear. Dish issues . Cascade platinum. Powers. Through. Your toughest stuckon food. So let your dishwasher be the dishwasher. This turned out great. Cascade. 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Turning our savings over to wall street. And risking it on the stock market. Hecks plan means billions more in fees for wall street. And theyve donated over half a Million Dollars to his campaigns. Those numbers speak for themselves. Joe heck is a threat to a secure retirement, because hes part of the problem in washington. Afscme people is responsible . . You know, when she was a model, she knocked people out with her looks. Now as an olympic boxer, shes doing it with her fists. Mikaela mayer, the face of soft drinks and clothing lines, shes entering the ring, just hours away from the fight of her life. Heres abcs rachel smith. I think im boxer. Long punches, good jabs. Solid righthand, left hook. Reporter landing punches like this, is what Mikaela Mayer hopes will win her the fight for olympic gold. My ultimate goal is everything and beyond. I want to be on that podium with the gold medal. And i want to build a career after that. Mikaela mayer reporter i first met her early last year, fighting not olympic stadium, but in this baseme basement gym in the outskirts of atlanta, where some of the best amateurs in the world facing off at the tournament of champions. A ramp up to the olympics. Red corner, Michaela Mayer reporter michaela spends almost all of her time in the jim, three times a day, six days a week. Training her body my boxing workouts are literally more mentally draining than they are physically. Reporter now a serious olympic medal contender, michaelas road to rio was an unlikely one, while her teammate clarissa shields started boxing as a kid, and had won gold by 17. When michaela was a teenager, she was fighting, but nowhere near a boxing ring. Why were you kicked out of school . I was kicked out of School Reporter she said her life was starting to take a dark turn. When i found boxing, i switched gears. It focused me. I topped going out. I stopped partying. I cracked down in school. It seems that being in the ring is not about fighting and taking out anger, its about discipline and technique. Definitely. Theres a bigger goal now. Reporter to fund that goal, michaela has had to use her braun and her beauty. Millions of girls are told theyre pretty. Reporter shes been the face of dr. Pepper. But not many end up becoming a model. Reporter shes even been featured for the muhammad ali collection. Have the prettiest foot work, the prettiest face. Reporter a runtime model, she doesnt mind the bright lights, but she says female fighters shouldnt have to show skin to get paid. How you fight in the ring, your skill, thats all that pretty face behind their products and its sad but true and thats the harsh realities of the world. Reporter in another harsh reality its the men, mayweather and pacquiao ring a bell . The top ranking female fighters make less than minimum wage. A typical championship fight for a woman professional, shed make about 5,000 still. But a man professional, for a championship fight, hes going and potentially millions of dollars. Reporter something that these heavy hitters are hoping they can knock out together. I do believe im going to get a chance to headline in vegas. You gotta be, you know, a woman that everybody wants to see fighting. Reporter but this year, they have their sights not set on green, but on gold. Just last month, we caught up with mikaela at the u. S. Olympic Training Center and colorado olympic hopefuls from team usa, were living and training. Youre surrounded by athletes with the same common goal. So really, every direction you turn is an olympic focus. Its almost like youre back in college a little bit. Because its kind of dormstyle living and everybody eats in the same cafeteria, but its fun. Reporter in the leadup to the olympics, the fighters have become a family. Okay close your eyes. Okay. Put your hand out. How cute is that . Its a sword oh, my gosh, i love it. Isnt that so cute . You better like it. Good job, mikaela, that is cute. Supporting her every step of the way, jenny fierce, her sparring buddy and travel mate for years. Shes one of my best friends. Shes not competing in rio, but shes going to be there with me clarissa shields who is defending her own gold medal. Clarissa is five years younger than me, but shes already an olympic gold medalist. Shes been here, shes done this. So i look at her as inspiration. Shes going to help me mentally when im there, knowing that i have her by my side. You got to shoot that cannon. Double the cannon up, okay . Reporter mixing a little fun wither had fighting, the women even came up with code names for their punches. Get out your sword. Fire the cannon. Walk the plank, youre walking them back towards the rope. Its a lot of work, so we got to find spots to kinda make ourselves laugh and have a good time. Reporter and now, after years of hard work, dedication, and singleminded focus, mikaelas made it to rio and she says shes ready for the biggest fight of her life. It was really a brutal path it were very slim. But to have a dream, you have to believe in yourself. You have to believe youre the best before youre the best. For nightline, im rachel smith in atlanta. Up next, simone biles leaves it all on the mat in the allaround competition. Abc news nightline, brought to you by pfizer. Had a lot of d. I was a smoker. Hands down, it was, thats who i was. I knew i could quit. Along with support, Chantix Varenicline is proven to help people quit smoking. Chantix definitely helped reduce my urge to smoke. Some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. Some had seizures while taking chantix. If you have any of these, stop chantix and call your doctor right away. 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Trust number one doctor recommended dulcolax use dulcolax tablets for gentle overnight relief of hard stools. Dulcolax, designed for dependable relief mr. Clean gets tough on dirt and grime and grease in just a minute mr. Clean will clean your whole house and every room thats in it floors, doors, walls, halls hes so tough, he cleans em all . Simone biles was already considered by most to be the best gymnast in the world. Tonight she won the medal just to prove it. Reporter its official. The worlds greatest gymnast. Simone biles springing into action. And grabbing that coveted title in rio, winning the womens individual allaround gold medal. Standing tall at just 49, the 19yearold, unstoppable, defying gravity, flipping and flying through the air. Landing, a champion. Joining the pantheon of great,s mary lou retton, nastia liukin, douglas. A dream come true for the ohio native. I was just a really hyperkid and i was always bouncing off the walls. So gymnastics fit perfectly and i didnt try any other sports. Gymnastics chose me. Ive loved it every since. Her signature flip aptly named the biles. On the second flip she does a half turn and lands forward. Difficult routine ever performed in the short of gymnastics. Her teammate aly raisman, impressing with the silver second. Biles relishing the victory with her teammates, leaving rio with that coveted medal and a taste of triumph. Thanks for watching. News. Com and our Nightline Facebook page. Goodnight, america. Maria carry showing off that massive engagement ring. The pop diva rocking an event, well taking you there. The ladies have this heist covered, george clooney. Latest details on the oceans 11. Then say hello to the next but what could keep adele from taking the job . Courtney kardashian stuns on the cover of the magazine. Are they tired of her keeping up with her tv show . I dont want to be in it. Big stars, big hollywood. Celebrity tv starts now. Welcome to celebrity page. Coming to you from the heart of new york city. Weve got all of your entertainment news. Lets get started with hollywood wrap. A biker chick mariah carey. This all leather ensemble. The leather jacket, halfway open, revealing the the black bra. The black diva, honoring a the secretary. Larry king also attending. Katherine heigl showing up her