and through all the worry i still hear your voice so tell me how to be ♪ ♪ in this world tell me tell me how to breathe in and feel no hurt tell me tell me how ♪ ♪ 'coz i believe in something i believe in us tell me when the light ♪ ♪ goes out tell me that even in the dark we will find a way out tell me ♪ ♪ tell me now 'coz i believe in something i believe in us ah oh oh oh ♪ ♪ we used to be kids living just for kicks oh oh oh in cinema seats ♪ ♪ learning how to kiss oh oh oh running through streets that were painted gold ♪ ♪ ohh we never believed we'd grow up like this so tell me how to be in this world ♪ ♪ tell me how to breathe in

and feel no hurt hurt tell me how 'coz i believe ♪ ♪ in something i believe in us tell me when the light goes down tell me ♪ ♪ that even in the dark we can find a way out tell me tell me now 'coz i believe ♪ ♪ in something i believe i believe in us i believe i believe in something i believe ♪ ♪ i believe in us ♪ whoa ♪ [ cheers and applause ]

this is "nightline." >> tonight, searching for answers. the father of the accused texas school shooter breaking his silence. classmates piecing together the psyche of the alleged killer. seen dancing at a church festival just days before. >> he never seemed angry at all. he always seemed calm and cool. >> new details from students inside during the attack. and what we're learning about the heroic officers who may have saved countless lives. >> the heroes engaged this individual at approximately four minutes. plus, meghan makes her mark. the world still buzzing about that affair to remember. the dress, the music, the kiss, and the historic symbolism. how the ceremony incorporated the bride's african-american heritage and hidden breaks with

tradition dreamed up by england's new feminist princess. and -- ♪ baby i was meant to run "american idol." this season's winner just announced. taking a victory lap with an unforgettable performance. but first, the "nightline" 5. (sound of footsteps) (sound of car door opening) (car door closes) (sound of engine starting)

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good evening. thank you for joining us. we begin with the latest on the texas school shooting. students who were inside that horrific attack now sharing harrowing new details about the accused gunman's behavior during the rampage. these attacks are becoming so common it's beginning to seem like an epidemic. and tonight one public health official tells us it needs to be treated like one. here's abc's marcus moore. >> and then out of nowhere we hear three gunshots. >> a lot of loud pops. dove under the desk. >> there's a slight pause and you hear boom, boom. then you realize what it was. >> reporter: desks as shields. closets for cover. these are the war-like stories from inside america's schools. >> always kind of feet like eventually it was going to happen here too. i wasn't surprised. i was just scared. >> reporter: this time it was in santa fe, texas, a small town outside houston. >> more shots fired. additional shots fired. >> reporter: the barrage left ten dead, eight students and two

teachers, and injured 13 when an alleged gunman opened fire inside a high school art class on friday morning. >> they're having a shooting at the high school. i have an officer down. shooter not in custody. >> reporter: those haunting images we have seen too many times before, a uniquely american phenomenon. the telltale signs of an all too common problem afflicting our country's schools. part of what some call a public health crisis. >> school shootings now are at epidemic levels. they're increasing in frequency and in lethality. >> reporter: the students at santa fe high had just started the school-day when a fire alarm rang out. >> he's actually shooting. he's in the art room. we've got, we've got shots fired right now, guys. >> reporter: 15-year-old isabel lamats was inside that art class. >> at first i just froze because i didn't really know what was going on. and we ran to the back door, but it was locked that day. i then ran to the ceramics room which i was pushed into by other classmates, and i immediately hid. >> reporter: on the floor she calls the police and then her

mother. >> and i heard her say they're shooting up the school, i'm hiding in a closet, i love you mom. and then i could hear the gunfire in the background. >> reporter: survivors sate alleged gunman taunted his victims after shooting at them. zplefr time he'd kill someone he'd say "another one bites the dust." >> what was his demeanor like? >> he was calm and excited. he was cheering himself on. my friend told me that he could hear him singing. >> reporter: police and paramedics responding within minutes, taking fire. >> officer down. >> reporter: with the suspect still on the loose. >> we need coverage on the outside. we believe he's barricaded inside. >> everybody needs to clear out this way. >> reporter: teachers ushering students away from the scene. isabelle still hiding in a closet. >> that's when he shot through the glass and the door, and that's when he shot four people. >> reporter: new details about what happened inside the school. two officers engaged in a

sootosoo shootout. >> heroes from that isv engaged this individual at approximately four minutes and stayed engaged with him, keeping him contained. >> reporter: shortly after 8:00 a.m. the suspect, wearing a trenchcoat and combat boots, surrendered. >> there are two weapons. one was a shotgun, and the other is a .38 revolver. >> reporter: but the danger was not over. >> there have been explosive devices found in the high school. >> reporter: authorities say that even more explosives were discovered at the suspect's home. although investigators say it's unclear if they would have funktsed. >> one was a co2 device. another was a molotov cocktail. and there's various other types of explosive devices. >> reporter: the suspect a student at the school he allegedly attacked, a junior who was a football player and had even been on the honor roll. authorities say he had no prior criminal record. >> his slate is pretty clean. and so there simply were not the

same type of warning signs. >> reporter: tonight new details trickling in about the 17-year-old now behind bars. >> right now he's in the galveston county jail under suicide watch. in there for capital murder. 17 years old. >> reporter: speculation over perhaps missed signs. just last month he posted this photo of a t-shirt with the slogan "born to kill." and possible motives, 16-year-old shana fisher may have been targeted for rejecting the alleged shooter, says her mother, sadie rodriguez. >> she finally stood up to him because they kept getting more aggressive and aggressive. >> reporter: but his attorney denying those claims. >> i've spoken with the d.a.'s office about it and there's no information to support that claim. >> reporter: the suspect's father telling the "wall street journal" his son is "a good boy who was bullied at school," adding "i believe that's what was behind the shooting." the father saying, "it would have been better if he shot me than all those kids." police say the father's guns were used to carry out the

attack. >> it does appear the guns were kept in a locked -- a locked gun cabinet or gun safe. >> reporter: and authorities now telling abc news that the suspect may have studied previous mass shootings, allegedly incorporating aspects of those massacres into his own attack. >> many of these mass killers are studying the work of previous killers and trying to outdo them literally. it's disturbing, it's scary, but it's quite real. >> reporter: a recent fbi report shows active shooter incidents have increased significantly since the turn of the century. >> from 2000 to 2006 we averaged around six active shooter scenarios annually. last year there were 30 active shooter scenarios in this country. that's five times the pace of when the fbi first started studying. >> violence is particularly copyable because it's so what we call salient, it's so emotionally driven. >> reporter: dr. gary slatkin is an epidemiologist formally with

the world health organization who now focuses on gun violence, a problem that he says often has a pattern. >> people who are feeling a certain way, unhappy, have a grievance, feeling socially disapproved of, and they are the people who are the most susceptible to the exposure to violence. >> reporter: but unlike other diseases, slutkin says gun violence is the one epidemic that public health experts have had no voice in and could play a key role in solving. >> the bread and butter of epidemic control is to find rare events in the community and to stop them from becoming full-fledged events. >> reporter: today a moment of silence at the growing memorial in front of the school. as the familiar thoughts and prayers and some calls for change once again echo, this last night from texas native kelly clarkson at the billboard music awards. >> and i'm so sick of moment of silence. it's not working.

like obviously. so -- sorry. so why don't we not do a moment of silence? why don't we do a moment of action? >> reporter: isabelle is now at home with her mother, who says for them it's time to heal. >> i don't know what drove him to this. the problem is it sounds like nobody did. which means that we as a community or his parents or whoever, they failed this child at some point. and sadly this was the outcome. and i don't know the answers. i do know we need to figure it out as a whole. >> reporter: too many once again mourn their losses. like those of aaron kyle mcleod, a 15-year-old honor roll student. sabika sheikh, an exchange student who was supposed to go home to pakistan in just a few weeks. and cynthia tisdale, a substitute teacher. for "nightline" i'm marcus moore in santa fe, texas. texas governor greg abbott will be holding roundtable

discussions on school safety starting tomorrow. and next, lifth the veil. the hidden symbolism in the historic royal wedding. but first, the "nightline" q. what is queen elizabeth's last name? mountbatten windsor? rochester buckingham? or dover leeds? the answer when we come back. face the world as a face to be reckoned with. only botox® cosmetic is fda approved to temporarily make moderate to severe frown lines, crow's feet and forehead lines look better. it's a quick 10 minute cosmetic treatment given by a doctor to reduce those lines. there is only one botox® cosmetic, ask for it by name. the effects of botox® cosmetic, may spread hours to weeks after injection, causing serious symptoms. alert your doctor right away as difficulty swallowing, speaking, breathing, eye problems, or muscle weakness can be a sign of a life-threatening condition. do not receive botox® cosmetic if you have a skin infection. side effects may include allergic reactions, injection site pain, headache, eyelid and eyebrow drooping and eyelid swelling.

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nearly 30 million americans tuned in to watch the wedding of prince harry and meghan markle. that's more than game 7 of the world series last year. and those viewers weren't disappointed. the chapel, the dresses, and

that glowing bride made an unforgettable ceremony. but it was the cultural symbolism that made this wedding truly historic. ♪ [ cheers and applause ] it was a wedding for the ages. newly released photos today cementing meghan markle's place in history as the newest member of the royal family. the biracial american actress marrying into the british monarchy signaling to the world a new chapter for a country steeped in the ways of old. the 36-year-old making a statement. soon as she walked in, alone. >> it took a lot of us by surprise, just watching this beautiful black woman who's a divorcee, had a career of her own, walk down the aisle largely on her own in windsor castle. the visual of that was stunning, and i think it was a moment that

was unexpectedly moving for a lot of americans. >> reporter: it was a wedding filled with royal firsts. a true marriage of two cultures. there was the fiery and unifying message of american bishop michael bruce curry, preaching before royalty. he did quote a king. >> we must discover the power of love. >> reporter: martin luther king jr. >> the redemptive power of love. >> i think many people tuned in for a royal wedding and a black wedding broke out. . >> exactly. and there was a really interesting bringing together of different ethnicities of blackness which i think is kind of profound. you have an african-american preacher. two parts that were really fascinating about bishop curry's sermon. one just the kind of deep profound commitment to love as the basis of all societies, the basis of politics, of commerce. i mean, he was giving a really profound message in the tradition as he invoked dr. -- reverend dr. martin luther king.

♪ when the night has come >> reporter: who lwill ever forget london. london's kingdom choir, their soulful version of "stand by me" a contemporary choice in a 1,000-year-old chapel. >> it was pretty striking. right away we saw there was a gospel choir. ♪ so arldarling, darling, stand me ♪ they sang "stand by me," which is such a deeply american song. ♪ stand by me ♪ stand by me >> the couple chose their music. they were very hands on about what they wanted to sing and how they wanted it to be sung. ♪ or the mountains should crumble ♪ i was a bit surprised by the choice of "stand by me." i'd never sung it for a wedding before. ♪ >> reporter: and 19-year-old cellist sheku kanneh-mason who

was invited personally by meghan to perform. >> what was so special about today was the diversity in the people attending but also the music. we had the gospel choir, which is really the first time something like that has been at a royal wedding. and i think it just meant that the whole event was just special for so many more people. >> we have an american bride. we have oprah winfrey in attendance. we've got serena williams. and a whole host of other americans. and there was something about it that just felt very democratic. >> reporter: and the quiet dignity displayed by the mother of the bride, doria ragland. the power of this moment lost on no one. watching the tearful gaze of a proud parent, a single mother, a black woman in dreadlocks seated across from the queen of england. >> in many ways she was her own

star of the day. >> she was our version of royalty. if you're familiar with the ways in which people who have dreadlocks have oftentimes been ridiculed or seen as dirty or different things like that, to have a woman wearing that proudly at such a special occasion also was kind of astonishing. >> reporter: watched by more than 2 billion viewers worldwide and 29 million in the u.s. alone, the royal wedding bringing an inclusivity and warmth not usually seen in the british monarchy. >> you also have this sense that the wedding has given us that kind of anything is possible and that those class differences, those race differences aren't as important as love. >> reporter: after months of speculation about who would make the dress, meghan's choice surprised many. her gown design bid givenchy's first female artistic director, clare waight keller. >> she's a strong woman, she knows what she wants, and it was really an absolute joy working with her. i think she really admired the fact that i was a woman designer

and the fact that i'm a working mother maybe played into that as well. >> reporter: and the silk tulle veil featuring embroidered flowers of the united kingdom's 53 commonwealth nations. >> this was something that h meghan markle herself requested. she said i want to symbolize all of the global reach that my new role will be able to touch. there's also by the way a california poppy in there for her own california heritage and one of the flowers grown outside kensington palace as well. >> reporter: another british designer, stella mccartney, created her evening look. >> we know that meghan markle has said in the past that, quote unquote, everything goals to her in a wedding dress was caroline bissett kennedy's wedding dress. this evening dress reflects that. >> reporter: in a symbolic move the queen bestowed the couple with the duchy of sussex, once held by prince augustus fred-r an abolitionist known for his liberal views. >> i'm interested to see what we're going to see from meghan and harry because that was kind of a very political, radical statement. you don't always hear much from

the royals. but i think a lost people kind of heard that. they had chosen these names, these titles. and they thought right on. >> reporter: shortly after the wedding a new bio appeared on the royal website describing the duchess of sussex as a proud woman and a feminist. as they left the chapel the choir sang edit ta james's civil rights anthem "this little light of mine." a new day for this monarchy and many in the world as this modern royal couple sets out to begin their happily ever after. and next -- meet your new american idol. the triumphant season finale. i'm missing out on our family outings because i can't a find bladder leakage product that fits. and it's getting in the way of our time together.

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and finally tonight, the british may have a new duchess, but here in america we have a new idol.

♪ somewhere over the rainbow finalists kale sxeb maddcaleb at moon and the rainbow in their final duet. ♪ when the dreams after caleb revealed they've also been making music behind the scenes. >> she actually happens to be my girlfriend. [ cheers and applause ] >> reporter: but there can only be one american idol. >> the winner of "american idol," maddie poppe. krarnl congratulations, maddie. >> reporter: maddie poppe choking back tears of joy in one last season-ending performance. ♪ maybe i was meant to run ♪ maybe i was born to >>