this is "nightline." >> tonight, police in miami shoot an unarmed man in a chaotic circumstance. as it turns out he was attempting to bring a man with autism back to his home. could enhanced training have helped reach a less violent outcome? meet the mental health squad taking part in a revolutionary new program. re yil hunter, once infamous for her affair with presidential hopeful john edwards, finds joy in raisesing their 8-year-old daughter. >> how are you doing, quinn? >> great. hillary clinton announces her pick for vice president in the lead-up to the democratic national convention, virginia's tim kaine. how will the swing state senator help the ticket? but first the "nightline 5." >> hey, need fast heartburn relief? try cool mint zantac.

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god evening. thank you for joining us. police procedures and the use of force, the latest altercation to gain national attention an unarmed man shot by police in a misunderstanding around the man with autism he was trying to help. tonight one police department's

mission to change their approach to interactions with the mentally ill. as another police shooting sparks outrage. 47-year-old behavioral therapist charles kinsey, sprawleding on, his hands empty and in the air. at his feet a 24-year-old man with autism who had just run away from a group home where kinsly works. authorities say police were responding to a call of someone with a gun who might be suicidal. >> all the officers felt that there was a firearm involved. >> reporter: police draw their guns but kinsey yells the man at his feet is unarmed. >> he has a toy truck! >> to the officers it looked like the white male was about to shoot mr. kinsly. >> reporter: police and kinsly plea for the 24-year-old to lay down. >> ronaldo, please be still,

ronaldo! >> reporter: but he doesn't. police officer jonathan elata fires his gun, hitting kinsey in the leg. >> hold fire, we have one down. >> reporter: another video shows police physically patting down kinsey and the man he was taking care of. kinsey spoke to wsvn -- >> sir, why did you shoot me? and his words to me, he said, "i don't know." >> there is no justification to shoot a man who's laying on his back telling you that he's unarmed. >> reporter: officer elata was placed on administrative leave. he issued a statement through the union president saying -- >> i did what i had to do in a split second. to accomplish that and hate to hear others paint me as something i am not. >> reporter: but clinton bower who runs the group home where kinsey works says the police approach was flawed. >> people with autism don't respond to commands in a normal way. he didn't get down, which scares me to think that what could have

happened. >> reporter: it's a misunderstanding happening all too often. altercations between police and people who have developmental disabilities or are suffering from mental illness that end tragically. >> 911, what's your emergency? >> my son needs to be taken to parkland, he's got schizophrenia, make sure they're trained police officers. >> reporter: this body cam video shows two dallas police officers. responding to a 911 call about a bipolar, schizophrenic man off his meds. we have to warn you what happens next is hard to watch. 38-year-old jason harrison comes to the door. notice the screw driver in his hand. >> drop that for me. drop it! drop it! >> oh! he killed my child! oh, me killed my child! >> drop it! >> shots fired! >> eight seconds after he came to the door, harrison lay dying

in his mother's driveway. shot five times, twice in the back. the officers insist they had no other choice. they fired in self-defense. >> they could have tasered him or something. they didn't have to come out straight with the deadly force. >> reporter: a grand jury declined to indict. the harrison family sued the officers and city of dallas but a federal judge dismissed the suit ruling officers did not violate harrison's constitutional rights when they shot him. >> the training these guys are lacking is what needs to be changed. >> reporter: jason harrison's name has now become one among many others. laval hall, dawn tray hamilton, jamd boyd, mentally ill, ended up on the wrong side of an officer's gun. many even inside law enforcement are calling this a crisis in american policing. >> what i can't stress enough, i truly feel in my heart, is that this is the future of policing. >> reporter: just hours from where jason harrison was killed,

a specialized team is working to revolutionize policing from within. they're san antonio's mental health unit. >> she's calling in stating she has depression and she's feeling suicidal. >> reporter: meet patrolman joe and ernie stevens. their task with responding to calls involving emotionally disturbed persons anywhere in the city. >> my name's ernie, you called the police? >> i promise you i'm not like any police officer that you've probably ever met. >> reporter: today it's a young woman who called 911 contemplating suicide. >> have you ever attempted suicide in the past? >> no. i don't even know how to do it. >> you don't have a plan right now? >> no. >> reporter: these officers are experts in what's called crisis intervention training. >> would you say that you really don't want to die but you want the pain to stop? >> yeah. >> okay. >> i don't want to leave my kid. >> you're willing to get some help today? >> yeah. >> reporter: this woman agreece to get help. >> we'll go in there together. you'll ride with us. unmarked car -- >> reporter: it's part of a pioneering program where the

mentally ill are diverted out of jails and into treatment. >> we walk in, it's not, hey, i'm officer stevens. it's, how you doing, my name is joe, this is ernie, we're here to help you. >> reporter: 15% to 20% of law enforcement agencies in the country have crisis intervention training programs. >> when police officers have had this kind of training, they unlearn certain biases. and they practice. they learn how to make quick decisions that are fair and impartial. >> reporter: according to a survey by the police executive research forum, new recruits typically spend 60 hours learning to handle a gun, compared to eight hours learning strategies for handling the mentally ill. >> look at our police academies. how close do they mimic military boot camps? then when you graduate you go to the street sgrrts for joe this work is personal. as a marine corps veteran he's battled ptsd. >> personal question, have you considered suicide? >> i have, absolutely. >> when you go on these calls you sometimes see yourself?

>> a lot of the times i see myself. and that's what allows me to do what i feel like is a good job. >> reporter: this new approach may be saving lives and it's certainly saving money for the city of san antonio. around $50 million in the past five years. >> do you feel that she's suicidal? >> reporter: their specialized training is put to the test almost daily. >> a complainant asking for a welfare check on his estranged wife. he's at her house, no answer. >> reporter: they race to the scene. we could sense their heart rates rising. >> police, are you okay? >> reporter: that's the victim's estranged husband who called 911. >> is she breathing? >> reporter: all they can do now is pace and pray ernie and joe arrived in time. >> we found her face-down in her bathroom with a lot of pills, empty pill bottles, at least seven. we tried to do what we could till e.m.s. got here. we have a faint pulse. >> you kicked the door in having

no idea what you might find inside. >> certain officers are going to see us as foolish. like you said, we don't know what the other side of that door, you're right. every possible call police officers get dispatched to has the potential to turn violent. and like i said, our mindset is always ready to go there if needed. >> reporter: the woman survived. ernie and joe likely saved her life. >> i saw two cops go in. i saw two human beings come out. >> the reaction is that, byron, because of how you see it affect us. there's no way you can do this day in and day out and not have a human approach, respond with emotion. i don't think it's possible. >> reporter: police across the country insist no two encounters are the same. but more enhanced training is key. >> the more information we can give them about how different people in the community are and give them the tools in order to de-escalate situations which can escalate, it's going to work to everybody's advantage.

next, her affair with presidential hopeful john edwards made her infamous. we'll tell you how rielle hunter and her daughter have moved past the scandal. first, it's official. hillary clinton has selected her running mate in virginia, senator tim kaine. the man she calls a relentless optimist who devoted his life to fighting for others. the presumptive democratic nominee announced her choice via twitter as well as a text message to supporters writing, i'm thrilled to announce my running mate, tim kaine, a man who's devoted his life to fighting for others. the two campaigned together in the battleground state of virginia last week but many considered an unofficial audition for kaine. >> hillary's ready to be president. hillary's ready to be our leader. hillary's ready to make history. >> before being elected to the senate, kaine was a governor, a mayor, and a city councilman and has never lost an election. clinton said she hopes it will bring some luck to the ticket.

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it was a political scandal straight out of a soap opera. the revolution that senator and presidential hopeful john edwards was having an affair, fathering a child, while his wife battled cancer. the vilified woman at the center, video grapher rielle hunter, returns with her 8-year-old daughter to discuss how they found happiness and to sell a book. here's abc's amy robach. >> i think what bothers me the most was the meanness of it all. the lack of compassion and

understanding that happens when people make mistakes or people do things. everyone judges and jumps on you so fast. >> reporter: composed and subdued, rielle hunter today seems a far cry from the woman at the center of a political sex scandal. >> what have the last few years been like? >> everything i do now is based upon being a mom. mom first. and my choices, how they're going to impact quinn. >> reporter: quinn, the little girl she had with north carolina senator and presidential hopeful john edwards, is now 8 years old you've said quinn is aware of everything that went on, it's her history, and it was hard to avoid with all of the media attention and paparazzi. how are you doing, quinn? >> great. >> have you managed to create a normal life? >> oh, yeah. >> do you still have people circling you, pointing? >> no, no, not circling. every once in a while something will pop up. but no, it's wonderful. >> reporter: but years ago, it was anything but. hunter, the infamous mistress of

john edwards, the brazen and boyish politician who got tripped up in a web of lies that captivated the country for years. >> the story's false, completely untrue. not true. i don't respond to these lies. >> what's your relationship like now with john? >> we're very, very good friends and great co-parents. and we have the same goals. we want the best for quinn. >> every time you've been asked this question, do you love john, you've always said yes. >> absolutely. i view him as my family. he's family. i absolutely love him. will always love him. >> what kind of a dad is your dad? >> he's a great dad. >> how often do you get to see him? >> as often as i can. >> tell me about the relationship you see between john and quinn. >> i think he has a real soft spot for her, he does. he gets very choked up by her. it's sweet. >> reporter: back in 2006, the charismatic candidate with the storybook marriage and his eyes on the white house. >> i declare myself a candidate

for president of the united states. >> reporter: but he begins an affair with rielle hunter just as his wife is battling breast cancer for the second time. >> i love her, been married to her 30 years, i'd do anything for her. she is completely committed to this cause. this is the cause of our lives. >> reporter: in front of the camera, edwards is working his family man image. >> she's the most extraordinary person i've ever known. >> reporter: behind the scenes the affair continues. rielle is hired as video grapher, accompanying edwards on the campaign trail. 2007, "the national enquirer" breaks the story. >> the story's false, completely untrue. i've been in love with the same woman for 30-plus years, as anybody who's been around us knows. she's an extraordinary human being. >> reporter: rielle becomes pregnant and the lies keep stacking up. 2008, edwards finally comes clean to abe's bobs would rough. >> did you have an affair with ms. hunter? >> in 2006, two years ago, i made a very serious mistake.

a mistake that i am responsible for and no one else. >> a report has been published that the baby of miss hunter is your baby. true? not true? >> not true. published in a supermarket tabloid. no, that is absolutely not true. >> does elizabeth think this is possibly your baby? >> no. of course not. >> no way? >> no. she knows it's not. >> reporter: in 2010, edwards would publicly admit that quinn is his daughter. a sweet and innocent girl born into a scandal she never asked for. she's speaking in public for the first time sharing her love of horses in a new children's book "howie do it." >> he thinks he's a fancy show horse, and he's just a pony. >> what did he teach you? did howie teach you something? >> he taught me to be a better rider and how to find happiness. >> reporter: but for rielle, finding happiness after that public and humiliating battering

has been a process. >> it was interesting. i looked -- the last time you spoke to abc news, it was 2012. your memoir came out. interestingly enough it was an election year then. it's an election year now. coincidence? >> complete. completely. >> are you concerned at all though by writing this book, even with the positive message, that it will bring up some of the ugly parts of your past and something you'll have to relive and talk about again? >> when you make a mistake you have to take responsibility for it. say you're sorry, forgive yourself, then move on. would i do that again? no way. i told george in 2012, knowing what you know now, that you wouldn't do it, but that would mean no quinn. >> yeah. well, you know. life happens the way it's supposed to happen. but if that -- if it was to happen again, you know, i'm not the same person anymore. >> you learn from your mistakes. >> yeah, you absolutely do.

i have. and i hope to teach quinn that. >> what have you learned from your mom, quinn? >> that it's okay to make mistakes. and not to be hard on myself. >> reporter: for "nightline," i'm amy robach in new york. next, at 3 years old, prince george is already mastering his royal responsibilities. if you love crab and who doesn't then seize the day already. crabfest is back at red lobster with so many kinds of crab and the most crab dishes of the year. so dive into whatever floats your crab-loving boat. like crab lover's dream. crack open tender snow and king crab legs, and twirl creamy crab alfredo. or try the new alaska bairdi crab dinner. sweet and straight from the icy waters of alaska, you've gotta get it... to really get it. but it won't last forever, so hurry in.

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finally tonight, england's favorite little prince turns 3. here's abc's lama hasan. >> reporter: this morning his royal cuteness, prince george, celebrating his 3rd birthday. >> releasing pictures to mark george's birthday, cambridge saying they appreciate people want to see george, what he's doing, what he looks like, how he's developing. >> reporter: doting mom and dad organizing a birthday bash fit for a future king. on the guest list, uncle harry

and a newly engaged aunty pippa. >> he likes scooting around on a scooter. the duchess of cambridge said he liked a bit of tennis and had his own tennis racket. >> reporter: the little prince who has captivated the world from his first days now growing up before our eyes. learning the ropes, already mastering the royal wave, stealing the show wherever he goes. >> when we had president obama here visiting prince george in his dressing gown with the rocking horse he gave him, even the president of america commented that a little kid in his pajamas upstaged the president. >> reporter: as he turns 3, william and kate slowly introducing him to his royal life ahead. the pint-sized prince now starting to take on public engagements of his own. >> the little royal waves, the fact that he's out at engagements, i think that is the start even though he's only 3 of his official life. >> reporter: for "nightline," i'm lama hasan in london. >> the photo of prince george sharing his ice cream may have

melted hearts but also fueled controversy. some animal rights groups reminding everyone that giving dogs human food can be dangerous. as we close tonight, after another long would be, we leave you with the encouraging words of maya angelou. "be a rainbow in someone else's cloud." thank you for watching abc news. tune into "good morning america" tomorrow. as always we're online at abcnews.com. good night, america.

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