this is "nightline." >> tonight, black and blusx blae was in command during the deadly assault on the dallas police force, the gunman saying he was seeking revenge for the shooting of unarmed black men by law enforcement. now nearly a year later the former chief speaking out on policing and the racial divide. >> the issue is, trust is hard to earn, easy to lose. >> and losing his own son in a shoot-out with police. >> you cry till you can't cry no more. being bethany, bethany mota has gone from a shy 13-year-old blog tore a grown youtube star. how she overcame cyber bullying so intense it made her leave school. >> i started struggling with even going to events or birthday parties how she now hopes to
inspire her fans. also tonight, "cars 3." the fast and the funniest are back on the big screen. >> i got nothing. >> we're with the star-studded cast, how pixar brought back the voice of paul newman for one more laugh. but first here's the "nightline 5." does your makeup remover take it all off? neutrogena makeup remover does. it erases 99% of your most stubborn makeup with one towelette. need any more proof than that? neutrogena. do you really use head and shoulders? >> no, not really. >> i knew that. >> not the one you think you know. >> the tri-action formula cleans, removing up to 100% of flakes, protects, and moisture flakes, protects, and moisture eyes for sofia v ♪ all across america more people are choosing nissan. flakes, protects, and moisture eyes for sofia v ♪
good evening. at a time of so much tension between police and the african-american community, you're going to hear tonight from an unusual and powerful voice. he's not only a former police chief who knows what it's like to wear the badge, he's also a black man who lost his own son in a police shoot-out. here's my "nightline" coanchor byron pitts. >> reporter: it's a narrative that keeps playing itself out over and over again. >> hands up,shoot! >> reporter: unarmed black men fatally shot by white police officers. >> oh, i shot him, i'm sorry. >> reporter: critics say too often those officers are cleared of all wrongdoing. tulsa, oklahoma. a police officer shot and killed 40-year-old terence crutcher last year. >> she told a jury she thought he was trying to see if he had a gun in his pocket or his truck. >> reporter: she was acquitted three weeks ago, sparking protests. officer shelby's lawyer said
today in a statement, she is still struggling with the ordeal of being charged with a crime for doing as her training provided and grieving the taking of another human life. >> this fits a narrative in america for many people that if you are black and male and you're dealing with a cop who's white, there's a chance you're not going to survive that. >> that's cherry picking what's happened in policing. it's not even accurate. >> reporter: former dallas police chief david brown says it doesn't tell the whole story. >> you can choose to pick an equal amount of courageous, brave incidents where officers risk their lives to save people of color. and then that will be your narrative. >> reporter: early in his tenure as chief he says his city narrowly avoided a black versus blue moment that could have divided everyone. >> my nephew gets shot in the back! >> reporter: it was the summer of 2012. a police officer shot a suspect. right from the start, keith
brown knew there would be controversy. >> the suspect's black. he's unarmed. the officer's white. and there's rumors in the community immediately that the suspect was running away and the white officer shot him in the back. people wanted to believe it. >> reporter: the chief called a press conference to get the facts out. >> he became fatigued and was losing the fight. >> rumors were so strong, this community was so tight knit, whatever was said on the ground, if not corrected, would be the truth. everything else afterwards would be a lie and not to be trusted. >> what if the facts in that case didn't land on the side in favor of law enforcement? would you still have been so willing to give the information? >> yes, because i have a number one principle. be the first to say you're wrong. the issue is trust. hard to earn. easy to lose. and so i knew how fragile the situation was. >> reporter: the situation that would ultimately define his career and shake the nation happened four years later.
a day that haunts chief brown still. >> july 7th, the world changed. >> yes. i had made ate point to come here because -- it's hard to relive. >> reporter: it was supposed to be a peaceful black lives matter protest in downtown dallas. when it suddenly turned deadly. over the next hours, the gunman terrorized the city. singling out and shooting only white officers. >> the suspect has exchanged gunfire with us over the last 45 minutes, has told our negotiators that he's going to hurt and kill more of us. >> reporter: four officers were down, a fifth would die. the shooter had barricaded himself in a building. >> i'm going to have to get pack real quick. >> reporter: little did we know as we watched realtime the chief was about to implement a radical plan. >> police chief deciding to send in a robot carrying a pound of plastic explosives. >> i'd do it again to save our officers' lives. >> there was some controversy after the fact how you took him out.
an explosive to kill one guy? >> yes, c-4. i was going to put those guys at more risk, i was going to have the guts to make a tough call. >> at best in a bad scenario your career could be over. >> yes. i knew that. nothing in me as a person or as a leader could have allowed someone else to take the risk that was clearly for me to take. >> reporter: that buck stops here mentality but also his heartfelt candor on a national stage. >> we're asking cops to do too much in this country, we are. we're asking us to do too much. every societal failure, we put it off on the cops to solve. >> reporter: won over the country. >> become a part of the solution. serve. your community. don't be a part of the problem. we're hiring. get out there in the protest line and put an application in. >> reporter: he says he's been a police chief in the making his entire life. the middle of three boys he learned about sacrifice, hard work, and giving back from the mother he adores. with the call to rise reinforced in his oakcliff church.
how do you explain it? a kid from one of the toughest neighborhoods in dallas, texas, to go on to become the longest-serving police chief in modern history. >> the biggest tabkeaway a product of a mother that just would never quit. >> reporter: he excelled in high school. we took him back to reunite with his 12th grade teacher miss cox. >> this dynamic person here. this kid wants to learn everything. and you can't give him enough. >> i knew this was my shot. at getting out of poverty for my family. i knew it. >> reporter: the straight "a" student went on to earn a full college scholarship. then as chief brown, now an abc news contributor, writes in his memoir "call to rise," in the fall semester of his senior year his worlds collided. >> i was going to hang out with my buddies. one of the friends i knew, bumped into him, let's go play one on one babble.
basketball. blank stare. then up to another kid, same thing. blank stare. just daysed look. >> zombies? >> yes. >> reporter: it was the beginning of the crack cocaine era. whole neighborhoods were destroyed. >> five or six rocks of crack cocaine. >> i had to do something. on a whim, went down to downtown dallas and put an application in. became a police officer. >> reporter: he joined s.w.a.t. and quickly rose to squadron leader. >> you were a hammer up to that point? >> hardcore. i was old-school police. i was proud of it. >> po-lice. >> police when you're being died, i was old-school po-lice. kick in your door, put you in jail if you were doing drugs. >> reporter: his success led to promotion and a surprise assignment in community police you hated it? >> the whole time. >> reporter: he showed us the storefront where he was stationed. >> hi, how are you? i'm okay, good to see you. >> reporter: then something happened. >> changed the way i thought about policing. i just thought to myself, never
got a chance to do it on a broader scale. man, it would be something to see. >> reporter: the opportunity came when he was named dallas police chief. but then on father's day 2010, the unthinkable. his son d.j., who had undiagnosed adult onset bipolar disease, shot and killed two people, one a police officer. d.j. himself was killed by a responding officer. >> you write, out of my tragedy two unexpected blessings emerged. >> when you find when you're at your wits' end in the most despair and distress you've ever experienced, it always points you toward serving others. >> reporter: tough moments that tested his faith. but adversity did not break him, it prepared him. and nearly one year after that massacre, the city he loves is still grateful. >> you changed my life, and i'm sure a host of other individuals' lives throughout the world. because you gave us hope.
you gave us hope. >> you're making my allergies act up, i've got to go. >> you gave us hope. >> thank you. thank you, miss cox. >> reporter: i asked about those "allergies" a little later. you got a little emotional? >> very you -- you have your head down, grinding out a profession. just trying to do it the right way. you never take the time to pay that much attention to the accolades. i just try to contain myself because i don't want to cry on tv. yeah that's not -- that's not cool if you're a brother from oak cliff, that's just not what i want to try to do. >> reporter: a brother from oak cliff. >> what's going on, bro? >> reporter: a texas taste of substance, style, who stayed home to serve. for "nightline," i'm byron pitts in dallas. next here, youtube star bethany mota on learning to be herself for a living.
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now to an intimate look at a pioneering youtube star, bethany mota. internet famous at age 13, she's now all grown up and both a style guru and an inspiration for millions of teenage girls. tonight she's opens up about her painful past to abc's abbie boudreau in our series "social stars." >> so you have all your equipment ready to go you sit on the famous couch -- >> i sit on the couch. >> reporter: inside the studio of youtube star bethany mota learning the one on ones of creating a fashion hall video. >> how do you pick which clothes? >> new clothes from brandi melville --
>> normally with videos it's items i've gotten recently. i'll do a summer hall in summer, a fall hall, whatever. just kind of talk about the things that i got. to actually see it on someone and not on a mannequin, it's helpful. >> reporter: helpful indeed. bethany is a virtual bff to millions of teenage girls. her youtube videos today have a combined total of nearly 1 billion views. with more than 10 million subscribers to her channel. she calls them her mota-fam, her mota-vators. >> i genuinely feel they are my friends. >> reporter: her young fan base turning to her for just about everything. from her favorite mascara -- >> apply that to top and bottom lashes -- >> reporter: to how she organizes her pencils. >> i can't tell you how many of these i made. >> reporter: bethany's addictive makeup and fashion videos have made her an icon in the online beauty world. >> that's what i love to do in general, just creating something that i feel so passionate about,
that can hopefully help and inspire other people. >> reporter: her inspiration transcending beyond foundation sponges and lip gloss. hoping to motivate her young fans to embrace themselves and find their voice. >> one thing i really talk about as much as i can and try to implement is just self-love. and self-acceptance. >> reporter: should go this now-confident 21-year-old once struggled with. >> i was very shy growing up. i was so scared to talk to new people, meet new people. i just almost insecure of my own thoughts and opinions. >> reporter: when bethany was only 12 years old, she says she was bullied online. how are you cyber bullied? >> basically they posted all these photos of me, photos i felt good about. captions like, look at me, i'm so ugly, i'm so fat. it was upsetting and it caused me to really just -- become very insecure. at a very young age. >> reporter: bethany says the bullying had a profound impact on her life. as she details in her new book
"make your mind up." in the book you talk about having anxiety attacks. >> yeah. i just was very insecure. and anxious about so much in my life at that point. fear was controlling a lot of it. >> reporter: so much fear she left public school and the bullies behind to be home schooled by her mom. >> i remember reaching a point where i was like, oh, i'm okay. i guess i'm going to feel like this for the rest of my life. >> reporter: bethany built up the courage to film her very first youtube video. she was only 13. >> i had my mom take me to the store, i got some makeup, i just filmed these products that i was very unfamiliar with. and that's kind of how it started. it was a slow start. and then eventually it caught on. >> reporter: bethany's relate ability catapulted her to youtube superstardom. >> i suddenly started embracing my thoughts and opinions. things that make me happy and that i'm passionate about, which i never did before.
and it would have never happened if i wasn't cyber bullied. >> reporter: her influence even catching the attention of the white house. >> how are you? >> good, how are you? >> good to see you. >> reporter: in 2015 she interviewed president obama on youtube, asking him questions from her fans. >> my question for you, how can we prevent bullying in schools and online? it's something that happens on a daily basis. >> i've got to say this is one area where i think your voice is more powerful than the president of the united states. and when they see young people like you who are willing to speak out and say, that's not right, and protect other people from this kind of bullying, cyber bullying or any kind of bullying, that's what changes people's minds. >> i was freaking out. i had to hold my hand. because my hands were shaking. and we got a selfie afterwards. >> whose idea was that? was it his? >> it was mine. >> of course, okay. >> i mean, everyone was up for it.
>> so you have this enormous audience. do you feel an enormous amount of responsibility? >> i've never felt like i have to take care of them. i just found for me the best way to do that is just being myself. and being honest with them. in any way that i can. >> reporter: and while bethany might make it look easy, she says her success hasn't come without sacrifice. and creative challenges. she tries uploading one video a week. what's difficult about it? there can be a lot of doubtful moments. that's happened to me a lot with videos where i'm like, i don't know if this is good enough what if they don't like this? there's a lot of pressure and you're definitely your worst critical nick this situation. >> did if you see something negative do you not even read and it move on? >> now i don't respond to negative comments because i feel like that's time i'm wasting that i could be responding to this person who took time to reach out in a positive way. >> reporter: she says she'll be
doing things her way and forging new ways for a very long time. >> i don't see myself quitting any time soon. any time i feel self-doubt or i feel a little off about what i'm creating i think about those people and those people that enjoy what i put out and are excited and are asking me when the next video is. that's motivating. so i think for me as long as they want to continue watching, i want to continue making things for them. >> reporter: for "nightline," i'm abbie boudreau in hollywood. next here, we're gearing up for "cars 3" with the hilarious cast. how this movie brought back a character played by the great paul newman. you love them together, but you've never had 'em quite like this. at red lobster's lobster & shrimp summerfest, the lobster and shrimp you love are teaming up in so many new ways. like new coastal lobster and shrimp, with a lobster tail with butter and herbs, sweet, smoky bbq red shrimp,
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kids everywhere will be tha installment of the hit animated series "cars." and their parents may be thrilled by the acting legend brought back for an encore. here's abc's nick watt. >> reporter: yes, lightning and mater, heartbeat of the franchise, are back for "cars 3." >> it's always nice to have new people come in and breathe some
new life into "cars." >> reporter: this time joined by a cocky youngblood, storm. >> you know, he's the best. >> reporter: and the queen's new trainer, cruise. >> what i like about the story is there is no reference to her being a girl. >> so excited that i get to train you! >> maybe some romance in future installments? >> how do cars do that? >> reporter: kerry washington plays a stats-obsessed announcer. >> 1.2% higher top speed! >> you fix the road! >> reporter: the voice of paul newman is back, they used old recordings of the late great actor. >> you will never be the racer you once were. >> sort of like the tupac hologram. >> reporter: the move why is made by our parent company walt disney and we're at the "cars" ride at disney california adventu adventure. >> have you done the ride? >> they wanted us to test run it. we literally did 32 in a row. >> reporter: larry the cable guy lives and breathes "cars."
>> my wife said it's like watching me around the house. >> i got nothing. whatever you do, do not eat the pistachio ice cream, it has turned! >> reporter: i'm necessary watt for "nightline" in los angeles. >> "cars" is in theaters this friday. tune into "nightline" tomorrow for a special edition called "declassified." the chelsea manning story, a "nightline" exclusive interview with my coanchor juju chang. thanks for watching abc news tonight. as always we're online 24/7 at abcnews.com and our "nightline" facebook page.