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Reporter tonight in the heart of this city of fear, were outside the apartment of brussels attackers made into a virtual bomb factory. The alleged bombmaker now believed to have blown himself up. The building scoured by investigators in protective gear as seen in this video captured by a neighbor, searching for clues and for the whereabouts of this man in the dark hat standing next to two suicide bombers who are still at large tonight. A bomb factory in the middle of this brussels neighborhood and people have a lot of questions. How could the landlord not know . How could the government, which checks every rental, not follow up . It seems almost incredible that no one saw anything. It was an attack that shook this city to its core. Two bombs detonated at the Brussels Airport. Then another inside the molenbeek train station. At least 31 people were killed and 300 injured in the attacks. The human cost seen everywhere. 150 people still in hospitals. 61 of them in intensive care. But an unknown number are still missing tonight. One of them emily eisenmans boyfriend. I really want to know if he is okay. That ill see him again. That his family will see him again. That this can all be over, as if it never happened. Reporter but for some american families, the wait is over. Ashley bruggerman running into her familys arms in a new york airport wearing the same clothes she had on when she fled the Brussels Airport. We found him. Reporter receiving word her 21yearold stepson was found. He had been unconscious since the attack and is said to have no memory of it at all. Its over. Its like whoo. Reporter Karen Northshield has been living and working as a personal trainer in belgium. She was found, according to her friend paul tucker, shes in a medically induced coma. Someone went to see her and said she wasnt in the best condition. We hope she pulls through and gets well as soon as possible. Reporter journalist kardava took this jarring photograph in the Brussels Airport after the blasts. We now realize that i was alive. First i wanted to picture everything. Because everyone was on the floor. And everyone was in blood. Look at her face. It was horrific. Reporter 27yearold shareen naragi was checking in at the American Airlines counter when she felt a huge explosion. A lot of the people on the ground. Almost like a blood pathway to the exit. We saw a gentleman leaning up against the wall there. I mean, he was he was he was bleeding. It just seemed surreal. Reporter inside the attackers apartment a grim discovery. The ingredients that may have caused these powerful blasts. About 33 pounds of tatp, the socalled mother of satan explosive used in the paris attacks last november. Almost 40 gallons of acetone used to make tatp. Detonators, a suitcase filled with nails and screws, ventilators. What the bomb tells us is isis is able to live off the land. Theyre able to instruct people to buy commercially available products which, when put together properly, become highly destructive bombs. Reporter Police Believe this man, Najim Laachraoui, is the bombmakerer for this terrorist ring. Responsible for yesterdays bomb blasts as well as the november paris attacks. He is one of the two men dressed in black from the cctv photo from the Brussels Airport. The other 29yearold ibrahim bakraoui. Each wearing a single glove that could be hiding the bombs triggers. The third man still at large. Five minutes after that photo was taken, police say they detonated their suicide bombs in two separate explosions. The blasts tore through Brussels Airport, creating scenes of chaos and carnage. New images today of the aftermath. A soldier carrying a victim on his back to safety. While others lay injured and waiting for help. And many more fled for their lives. About an hour later, police say ibrahims younger brother, 27yearold khalid bakraoui, would explode his own bomb inside the molenbees subway station. Police believe all were part of a cell in brussels which includes the paris attacker abdeslam. Abdeslam was arrested after four months of evading police. Authorities now say that timing of yesterdays attack may have been triggered by that arrest. Supported by a note found by authorities on the computer of airport attacker Ibrahim El Bakraoui, he wrote about being in a rush, no longer knowing what to do, being sought everywhere, spending the rest of his life next to him in a jail cell. Those remaining members of the cell saw that their comrades were being picked off one day after another. And probably thought they had very little time left to conduct the next round of attacks. Reporter for the first time today the state Department Warns americans that there is a risk of imminent attack when traveling to all of europe. This morning, prosecutors revealed both el bakraoui brothers, born in belgium, had extensive criminal histories. But that they knew of no ties to terrorism. This afternoon, we learned that is not true. Both brothers had documented terrorism ties. In fact, last june interpol sent a worldwide alert about khaled el bakraoui, saying he was wanted in belgium. The charge, terrorism. And today turkeys president saying that same month, brother Ibrahim El Bakraoui was caught on the Syrian Border and deported to europe. The belgian authorities were warned he was a foreign fighter. Whats now clear is the paris attacks and brussels attacks were all of one cell. One cell that straddled the two borders. Reporter bombmaker Najim Laachraoui was well known to authorities. The tatp found in that apartment a signature of isis bombmaking found in seven places across paris. The materials in the apartment suggest more bombmaking in progress. They had the precursors there in fairly large quantities. Reporter those three suitcases seen in the surveillance photo believed by police to be the likely source of the explosions. One of a small group of explosives that can function in a small area. So in a laptop. In a shoe. In underwear. There are others but this is one that goes under the classification of homemade explosive. Reporter despite the horror of yesterday imagine theres no country reporter the people of brussels are already rising up in solidarity and sorrow. Theyre going to try and tear us down, make us scared . Were going to fight back. I was scared yesterday. Here when i see everyone laughing, everyone has a smile on their faces it means like its not terror. You may say im a dreamer reporter but their city, their lives, will never be the same. For nightline, im terry moran in brussels. Well of course bring you any new late developments in this investigation as they emerge. Next, on the lighter side, tiny but mighty forces in fashion. Mid americas pintsized instagram stars. Opportunity to. So if i wanna go to jersey and check out shotsy tuccerellis portfolio, whats it to you . Or im a scottish mason whose assets are made of stone like me heart. Papa youre no son of mine or perhaps its time to seize the day. Dont just see opportunity, seize it applause dont buy makeup that settles into lines, it ages you. Get simply ageless makeup from covergirl and olay. With b vitamins, and spf. It floats over lines and you look beautiful and now theres simply ageless liquid makeup it helps you look younger in three ways. So in the future when youre older you look younger. Simply ageless from olay. Ellen speaking and sofia singing and easy, breezy beautiful covergirl why are you singing the end . So come try the largest variety of lobster dishes of the year, like lobster lovers dream or new dueling lobster tails. Its a party on every plate, and youre invited. So come in while it lasts. If youthen youll know howouth, uncomfortable it can be. But did you know that the lack of saliva can also lead to tooth decay and bad breath . Well, there is biotene, specially formulated with moisturizers and lubricants. Biotene can provide soothing relief and it helps keep your mouth healthy too. Biotene, for people who suffer from a dry mouth. Discover every way to easter at target. Get a 10 target gift card when you spend 50 on groceries. See store for coupon. How about taking some style tips from children who are not even yet in preschool . But thats the growing army of small fry fashionistas with millions of instagram followers among them. Theyre known as instakids and theyre having a sweeping impact on the fabric of social media. Heres abcs reena ninan. What i would wear is this with my converse. So this is a yes. This is a yes. Reporter little hailey talks style like an advanced fashionista. What i like about this is it could go with this. This is so nice. This is perfect. Reporter to say shes obsessed with fashion is an understatement. Hailey vasquez is an instagram model. Her page hails world has over 123,000 followers. This is Dolce Gabbana. This is Dolce Gabbana . Wow. How does it feel to wear these superluxury, highend designers when youre only 6 . Its really fun. I like wearing cool clothes. Because kids in my school say, i love your outfit. Reporter hailey is just one of many tiny trend setters, pages filled with children wearing the latest fashions like 4yearold ryan secret with his signature fauxhawk smiling for 119,000 followers. And 6yearold gavin giving his best blue steel look to his over 200,000 followers. Behind the kids are the parents. Fueling their instagram stardom. Haileys mom said her first post was when hailey was just 3. First picture was it literally like broke the internet. Reporter and that instagram fame catapulted hailey onto the runway and for some kids that can mean big money. For some parents its just posting cute photos of their child. For others theres another goal, its getting exposure, setting their kids up for modelling or acting careers. What happens with all the jobs she gets, where does the money go . 15 of it has to go to her trust fund. But the money actually goes into her savings account. So ill just put it there and let it grow. So if she decides at some point she no longer wants to pursue this, you know, she wants to go to mit or harvard, she has the funds to pay for that. What do you say to critics who say youre just capitalizing on your daughters good looks . For us this is a hobby, she just happens to get paid for it. So i feel like it builds her up for the future, her confidence. She looks at herself and says, wow, im beautiful. What do you want people to know about your Instagram Account . I want them to know that im really fun. And i love pictures, fashion shows. When you grow up, what do you want to be . A fashion designer. Just like karl. Karl lagerfeld . Is that who it is . Yep. Hes an icon fashion designer. Hes really fashionable. And i am too. Reporter and we were there as hailey sashayed down the runway in new yorks fashion week. Joined by other pintsized prodigies taking the fashion world by storm. After the show, she gave me a lesson in fashion. Tell me what youre wearing. Very stylish. What i am wearing is gucci. Whoa. Im wearing j. Crew. J. Crew . Where do the jeans come from . The jeans, they werent supposed to see them, i was cold so i put them on. Im not trying to make a fashion statement. Its because it was 10 degrees in new york today. I was hoping nobody would notice. Its probably a bad choice for a fashion show, huh . Yeah. You should probably wear like shorts. Reporter but the free world of social media stardom can come with a price. Potentially exposing kids to dangers. Raising questions about privacy and oversharing. If you have 100,000 followers, parents have to ask themselves, are all of these people goodintentioned . People can develop a scary obsession with your child. Reporter zule says shes taken protective measures to keep her daughter safe, posting only a few times a week and never tagging their location while theyre still there. I make sure that she knows that if people come up to her, she knows and shes aware that, hey, this person is not my friend. If she were to say to you, mom, i want to be a soccer player, i dont want to work in fashion anymore . I would say, okay. Then thats fantastic. And i would go on google and find her the best soccer school. At the end of the day im just trying to do what makes her happy. Reporter more than 2,500 miles away, in yuma, arizona, another trendy tot elle. That dress . Thats a pretty dress. Reporter at 3 years old, she has over 89,000 followers on instagram. Think about it. Thats 2,500 followers for every month shes been alive. Cheese thats a good smile. I started posting pictures of elle maybe when she was 4, 5 months. Its been two years later and im still in shock. Reporter she says the response online has not always been positive. Theres been a few comments. Like let kids be kids. I mean, i think its because they think i dress her up, that shes not a normal kid. But she is. She plays in the her clothes, she goes to school in them. Reporter mom linda works as a dentist. Fitting to note she also runs a boutique, the house of posh tots. Ive been offered to me, but then it doesnt seem organic anymore. Ill take the merchandise and style it any way that i like. But i dont really want to get paid. This is fun. And i have two jobs. I dont want to have a third one. Reporter back at home in new york, 6yearold hailey shows us that she can flex a few other muscles. Whats your favorite subject in school . My favorite . My favorite subject in school is math. Really, are you good at math . Really good. What is 2 plus 1 . 3. Wow. She approaches her wardrobe with just as much pizzazz. Im warning you, i have a lot of clothes. I have a jackets. I have capes, leathers, rain coats. If you had to pick one item, whats your favorite item right now . Well, i have a lot of favorite items. So first here, it would be this one. That ones burberry. When people see haileys pictures what do you hope they walk away with . I would hope that people would just see her for who she is, an amazing person. Reporter for nightline, im rita ninan in new york. And next, first her, now him. Till jail cell dozen they part. The first night in captivity for a real husband of new jersey. Together is great. But i think women would agree, getting home. To cuddle up with their man is nice too. But heres the thing about half of men over 40 have some degree of erectile dysfunction. Well, viagra helps guys with ed get and keep an erection. Ask your doctor if your heart is healthy enough for sex. 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Reporter three months after his wife, real housewives of new jersey star teresa guidice, was released from prison, hes checked in for a 41month stay starting today. Giving his wife one last kiss. Im the queen. Reporter the couple once were accustomed to mansions as opposed to cell blocks fell into legal trouble in 2014 when they pleaded guilty to multiple counts of fraud. They spoke about their ordeal with andy cohen on watch what happens live. Do you feel guilty . I mean, this i do. But i mean, at the same time, what am i going to do . He didnt mean i did everything i could to get her out of it. Didnt work. Reporter a judge allowing them to serve their sentences consecutively so someone could be home to care for their four daughters. Love, love, love, love you. Did you know you were committing a crime . Definitely not. The government saw it differently. Reporter in her first tv interview after her release, guidice spoke to amy robach about how it felt to be reunited with her husband. What was it like seeing joe . It was amazing, oh my god. Couldnt keep his hands off of me. Im like, honey it had been a long time. Yes. Reporter there could be more than years of jail time separating joe and teresa now. He still faces possible deportation to italy. Would you move to italy with the girls if that ended up becoming reality . Were just taking one day at a time. Reporter in a statement to abc news, guidices lawyer said it was obviously a very emotional day. They will get through this just as they did when teresa was away. For nightline, im Rebecca Jarvis in new york. The dalai lama has spoken often, not about reality tv, but the reality of war and terror. After 9 11 he said, the hour has come for us to demonstrate at the highest level our most extraordinary thought about who we really are. There are two possible responses to what has happened. The first comes from love. The second from fear. Thank you for watching abc news. Tune into Good Morning America tomorrow. 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