this is "nightline." >> tonight, breaking news. a shooting at a south carolina church with unconfirmed reports of as many as nine people shot. and a suspect remains at large tonight. victim of the system. khalif browder's life behind bars was a nightmare but he refused to plead guilty to a crime he said he didn't commit. >> being stopped -- >> it made national headlines as browder tried and failed to recover from the trauma. tonight, how his mother is working to find justice. on the road with jeb bush. the former governor with dreams of joining his presidential father and brother. >> how you doing? >> tonight our david muir is there as he meets potential voters. >> i'm campaigning for president

of the united states. >> and the long journey ahead rather what he had to say about his family's political dynasty and the secrets of his marriage of other four decades. "nightline" will return in a moment.

good evening. breaking news. a shooting at a south carolina church with unconfirmed reports of as many as nine people shot.

the suspect currently at large being sought by charleston police is reportedly a slender white male in his early 20s. according to the website emmanuel african episcopal methodist church has one of the largest and oldest brack congregations in the the south. there are unconfirmed reports the pastor may have been at the church at the time of the shooting. we'll stay on the story throughout the night at abcnews.com and much more to come on "gma" in the morning. we turn to another tragic story. about a young man who learned the hard way about the troubles plaguing america's criminal justice system. kalief browder was arrested at 16, never convicted of a crime, never had a trial, but spent more than three years in one of the most violent jails in the country. tonight, here is kalief in his own words. >> you're supposed to be innocent till proven guilty. but the way the system is you're guilty till proven

innocent. >> reporter: little did we know kalief browder was already dying inside the day we met him. at the easy age of 22 he'd already learned more about america's criminal justice system and endured more than any soul should everybody have to. that's him on the floor inside rikers island new york city's most notorious jail beaten by a gang of fellow inmates, all caught on camera. he was 17. watch as these teenage boys swarm like piranha over and over. he can't defend himself. the guards can't protect him. at the age of 16 he was arrested and sent here for allegedly stealing a backpack. >> it was like we were beaten stomped by the correction officers. they beatwere beating on me. >> reporter: surveillance video obtained by "the new yorker" magazine which brought khalif's story to light. we see him being escorted. he appears to speak to the guard

who in seconds the seen slamming him into a wall then to the ground. >> i cried myself to sleep. it's like i want to go home. it's like they're not letting me go home. >> reporter: to go home khalif's mother venita needed to post bail of $3,000 money she just didn't have. >> what was your reaction when you heard your 16-year-old boy was being sent to rikers island? >> my heart dropped. i had heard so many horror stories about rikers and all i could picture was him getting hurt. >> reporter: court records show khalif had attempted suicide at least six times, spent 1110 days behind bars more than 800 of those in solitary confinement. his court date postponed more than 30 times. he endured all this having never been given a trial, never convicted of a crime. finally in june of 2013 all charges against khalif were dismissed. but his experience exposed a troubled criminal justice system and the brutality of life behind bars.

>> i think at some point, almost a reckless disregard by the prosecutors in this case. they didn't care byron. they saw his file they saw that he was in jail, and he'd probably take a plea, they were hoping he'd take a plea. >> the judge told me if i plead guilty i'd be released from jail that same day. i didn't do it. you're not going to make me say i did something so i could go home. >> it is an out rage just case of justice derailed. >> reporter: news of the teen lost in the city's criminal jus does system made headlines. >> excited about the show or nerve racking? >> nerve racking. >> reporter: police told his story to rosie o'donnell on "the view," "huffington post," and other programs. when we met him he was doing better earned his ged, started classes at bronx community college, 3.fwilkts g56 gpa. but jail had taken its toll. >> i'm never going to be the same. >> when he first came home he would walk the four corners of the driveway. >> you hear animals that have

been confined to a space -- >> yes. he did it. i had to watch my baby go through all of that. >> reporter: the last year khalif grew depressed, deeply paranoid. >> deep down i'm a -- i feel like i'm a grown old man. >> reporter: and then two saturdays ago, two years after his release from jail kalief browder hanged himself with an air conditioner cord in his home in the bronx. he was 22. >> i didn't know what to do. can you imagine? finding your son? and he's hanging with his head back. >> khalif's death made national news and messages of outrage flooded social media. lena dunham instagramed his photo and called for reform. our interview with khalif went viral on facebook. what we now know that is did leave was due in court to face new charges of disorderly conduct the week he took his own life. his family said he was scared to go back into jail.

by now the beatings he endured in likers had been seen millions of times online. >> what did rikers do to your son? >> it destroyed him. it destroyed him. mentally. >> has anyone apologized to you? for rikers? >> no. >> from the prosecutor's office? >> no. >> what do you hope happens now? >> i want them to be responsible, to admit that it was their fault that my son is dead. he spent three years in hell. >> it sounds like you're in that hell now. >> i will be in hell until the day i die. because i found my son hanging. if your child is murdered you have an immediate anger towards that person. and you want that person found and pay for what they did to your child. it's not one person it's a whole system that destroyed my son.

and i want them all to pay. >> i deeply wish we hadn't lost him but he did not die in vain. >> reporter: new york did away with solitary confinement for 16 and 17-year-olds. plans were announced to fix crowded dockets and courts to ensure the right to a speedy trial. there are also calls for change to the cash bail system. currently only 12% of defendants in new york city make bail. >> we're in a quest for justice. >> reporter: paul presstia says it's not enough. >> reform's nice and well but admit you did something wrong here. that was always khalif's message. how many young men have to go through this? >> 99% of the critics that talk all that junk i promise you, they wouldn't have the courage to do the job that the correction officers do. >> reporter: bernie care rick knows the system from both sides. the former chief of the new york city police department he also ran rikers island for years. and as a convicted felon, he

spent time in solitary confinement. >> as someone that spent 60 days inside solitary confinement, it creates paranoia it makes you insane. >> reporter: he cautions the city against bowing to public pressure and implementing changes he says could put rikers correction officers and inmates in danger. >> if you take solitary confinement away from the correction officials, you're going to see a major, major increase in violence. these are kids that come from gangs. these are kids that ran the streets. i think it's very dangerous. >> what would you do? what are your suggestions for rikers island? >> i think you keep that you charge the staff that violate the law and they're locked up. >> reporter: it's not hard to imagine the life he might have led if he had made it. >> i have the medal hanging on my bed. >> reporter: you see it in the remnants of the life and the people he left behind. like elizabeth p. yums

community director at bronx community college, who worked with khalif. she says she's working on getting khalif his associate's degree posthumously. >> thank you so much. >> what do you want the world to remember of your son? >> to remember him for the standup person that he was. he was a good person. >> reporter: the kind of person who turned down a plea bargain on principle. whose story may help save others like him. >> if i would have just pled guilty, my story would have never been heard. nobody would have took the time to listen to me. i would have been just another criminal. >> our thanks to producer katie k ku. the 2016 presidential election. plus broad city. how the girls behind it skyrocketed to fame with help from amy poehler.

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as jeb bush joins the ever-expanding roster of republican presidential candidates the new bush on the block wants prospective voters to know he's both embracing his legacy and working to distinguish himself from his family. now "world news tonight" anchor vid muir hits the road with the former governor for behind the scenes an intimate look at what's really driving him. >> thanks. >> what are you doing in here? >> i'm campaigning for president of the united states. >> reporter: the first of many country stores we're with governor jeb bush on his first official day in iowa. 509 days to election day if he can land the nomination.

the question that's generating the most talk? how do stand on his own. >> people know me as barbara's boy. they know me as my dad's son. in my mind the greatest man alive. >> a lot of americans are saying to themselves, a bush or clinton, isn't there anyone else out there? >> i'm totally self-aware and understand that i have a challenge. and i intend to overcome it by sharing my life story. >> reporter: his campaign logo read jeb! no last name. >> i'm going to have to work to overcome that. >> reporter: our cameras rolling as governor bush 12 years since his last campaign finds himself teaching a potential voter how to take a selfie. >> that looks good except you've got to turn it around. i knew we could do that. >> reporter: the first of many cups of coffee here. >> thank you, man. thank you, thank you. all right, we going? >> reporter: we're on the road 35 years afteroung jeb bush

was on the phone here making calls for his father. this time he's back for himself. >> let me ask you this. 509 days out. >> it's a daunting challenge. it's a great organizational challenge. it's a challenge for me personally to grow and to get better. i really do view it as an extraordinary opportunity. i'm really privileged. >> i will return to win. >> reporter: jeb bush is fully aware the last two republican presidents were also bushes. and what comes with that. late-night host conan o'brien -- >> jeb bush is taking his presidential campaign on a tour of europe. he's telling europeans, i like you guys because you're comfortable having the same family in charge for centuries. >> reporter: this morning another presidential hopeful, donald trump, wondering if it's the bush family pushing jeb to run. >> i think he's a stiff. i watch him. i think he's somebody that doesn't want to do what he's doing. i don't know is he being forced to do it?

>> how easy is this going to be for someone who describes himself as an introvert? >> i'm a grinder, very competitive, focused, very disciplined. but it takes a lot of effort. but it's not about hanging out with people and just getting the energy that they have. it's about service for me that motivates me. >> reporter: jeb has been off the campaign trail over a decade now very visiting past positions. >> let's talk immigration. your kickoff speech. we saw the hecklers spelling out "legal status is not enough." you have said along the way, you would be open to the idea of a path to citizenship. more recently legal status. so as we sit here today in iowa where do you stand? >> i think we ought to have a path to legal status. dream act, kids that are here because their parents came they had no control over it. there ought to be some recognition that we're not going to send them back to a country they know nothing about. >> a path to citizenship for them? >> absolutely. >> not their parents? >> not their parents. >> reporter: jeb bush's family is not only bilingual, they

consider themselves bicultural. he met his wife in mexico when he was 17. >> across a plaza, i saw a girl. she spoke only a little english. my spanish was okay. but really not that good. >> reporter: coluba daughter of a farmer met jeb, exchange student. they would marry in texas a few years later. having three children together george p. bush noel bush jeb bush jr. >> she's not a political wife which i love. i like to go home and be with her and be as we've been. i don't have high expectations for her to have a five-point plan on policy. she's campaigning, she's showing that she can do it she's really good at it. but she's not a political spouse. she's my soul mate for 41 years. >> reporter: jeb converted to ka thol gym simple for his wife. we asked him what language they use most often at home. [ speaking spanish ] >> reporter: back in the car,

driving through iowa i ask about his cherished sundays. >> you talk about the grandchildren. >> yeah. >> the joys of your life. sunday fun day. >> yeah. >> how many of those sundays are you going to have to put aside? >> i'm pretty serious about maintaining sunday as a time to really just kind of regain my footing, to stay balanced spiritually and physically. i can campaign really hard for six days. and take a day off. >> reporter: for "nightline," i'm david muir in iowa. and next the women of "broad city." sorry, lena dunham fans think they're the voice of a generation. how these millennial misfits are making comedy history. >> abc news "nightline." brought to you by tylenol. when you got married? when you had kids? when did you first fight to be considered a family?

when you fell in love? when you got married? when you had kids? family isn't defined by who you love, but how. tylenol®.

finally tonight, the comedians behind the wildly popular series "broad city" rely heavily on the very real and very weird things that happen to them in real life. and honesty that's won them a loyal following. everything changed the day they found out one of those fans was the comedy goddess herself, amy poehler. here's our colleague and yahoo! news global anchor katie couric. >> i think you need to be fired really soon. >> i know. >> reporter: two broads one city and a whole lot of funny. >> oh! >> reporter: "broad city" is a new take on classic comedy. >> you're asking me if i'd make love with that dog? >> i mean if you were a dog. >> reporter: ahan that glazer

and abbyi jacobson drawing from real-life highs and lows to craft a unique, refreshing and at times shocking comedy celebrating female friendship. >> we're like feminist heroes right now. >> so okay, that's 36 guys that we've been rejected by and one lady. >> everyone want toth know where do these crazy storylines come from? >> got one for you. >> okay. >> clogged toilet in the girls' room. pretty bad you'll know when it you see it. >> we try to make sure to keep the seeds of stories from things our writers have experienced or friends. >> even major through lines. like alana's relationship with lincoln. >> this is purely physical. >> and my thing with my neighbor jeremy is just about pining for someone. >> right. >> and what that person makes you feel. >> hey. >> hrrrngh --

>> reporter: a comedy central hit going into its third season in part thanks to the support of one comic powerhouse. >> huh did amy poehler see your web series? >> we e-mailed our teacher, saying would you ever be on our finale? he said, i'll e-mail you for you. she was like i love "broad city." >> you guys are really in the zone just go with the flow and live your dreams! >> reporter: a show that every week without fail tries to keep it real. maybe a little too real. [ smoke alarm ] >> no no no! >> do you worry about the role model thing? >> i think there's something to being an imperfect role model. ♪ started from the bottom now we here ♪ >> reporter: no telling where the series will take them. but for now these broads are keeping busy. >> we're writing a movie and we're really trying to keep an empire going. i mean, "broad city's" not going to last forever but there's the next step after that.

♪ four and three and two and one ♪ >> reporter: for "nightline" i'm katie couric in new york. >> you can see katie's full interview on yahoo!.com. amy poehler said taking risks and taking choices is what makes life so exciting. thank you for watching abc news. as always we're online 24/7 on our "nightline" facebook page and at abcnews.com. good night, america. don't read at the table. hey, i'm reading that! i didn't finish that! no. [muttering] and stop playing with your hair. you're going to make it fall out. you can stop worrying about my hair, 'cause i'm gonna shave the rest of it off. what?! that's right. i'm shaving my head today. oh, that's asinine. it's not asinine. it's hip. hey. we're outf milk.

help yourself. you want to hear the latest? your father wants to shave his head. why don't you just stick your head out the car window? where's my razor?! oh, sit down! we do not shave our heads in this house. it's my house and my head! i will not be seen with you like that. another advantage! i'm hiding all the razors. you're not going to shave your head. of course not. i just want to read the paper.