this is "nightline." >> tonight, new images before that deadly arrest. the videos revealing bitter truths about race and policing in america. now from heartbreak -- >> they murdered my brother. >> to heated protests erupting across the country. the words "i can't breathe" forever haunting one mother. when the cameras go on, what truths are revealed. plus, breaking down bias in america. deep roots of racism captured in the past and present, a white woman calling the cops on a black man in the park. >> i'm going to tell them, there's an african-american man threatening my life. >> how the next generation hopes

to move the country forward. >> i want to be a police officer because if the law doesn't change nothing else is going to change. >> "nightline" starts right now with juju chang. >> good evening, thanks for joining us. tonight, the calls for justice for george floyd growing louder. the black man in minneapolis dying after an encounter with police. his death causing national outrage, with new video emerging. we caution you, some of the images you are about to see are disturbing. >> please, please. please, i can't breathe. >> reporter: with every passing second, george floyd's life was slipping away. >> ah, ah. >> reporter: this ten-minute video is difficult to watch but impossible to ignore. now crucial testimony bearing witness to an ugly reality. >> mama. mama. >> get up! >> reporter: face down on the pavement, crying out for his mother, a police officer's knee to his neck. >> my stomach hurts. my neck hurts. everything hurts. ah. there's water or something.

please, please. ah, i can't breathe, officer. >> reporter: a bystander's cell phone recording floyd's pleas for breath, capturing those precious words for those excruciating minutes. >> his nose is bleeding. >> reporter: this, the second video of a black man dying to emerge in less than a month. >> seeing ahmaud arbery killed by citizens while he's jogging. watching george floyd be killed unarmed, by police, all these incident back to back. >> please don't tell me he's gone. >> reporter: from eric garner to ahmaud arbery, all part of a seemingly endless stream of footage, revealing the violence so many have experienced, challenging police versions of events, some like orlando castile in florida.

offering a native of lives cut short, igniting calls for social justice. >> it's wrong, period. >> reporter: floyd's sister bridget left in disbelief. >> i don't understand how someone could possibly let an individual go out like that. >> a state of emergency in black america. the pandemic that existed long before the coronavirus of racism and discrimination that often leads to the unjustifiable and unnecessary killings of people of color in america. >> reporter: outrage from the graphic video of floyd dying, spilling onto america's streets. from houston to chicago. >> what do we want! >> justice! >> when do we want it? >> now! >> reporter: and minneapolis.

where police in riot gear fired what appeared to be tear gas. this, the latest salvo in the country's reckoning on race. >> video is an indispensable part of our struggle to get justice in these cases. without video, we're not talking about ahmaud arbery. we're not talking about george floyd. video is our evidence. video is our proof. >> reporter: remembered by his friends as a loving father and gentle giant. >> the world going to remember his name. the world going to remember george floyd. he wasn't supposed to go out like that. >> reporter: floyd, seen here in a 1992 high school football game scoring a touchdown. >> he was way better than me in football. >> reporter: for former nba star, steven jackson, the loss of his 46 year old friend is

like losing family. >> floyd was my brother, doing what he was supposed to do, y'all kill might brother, man. >> growing up in the streets. >> reporter: both jackson and floyd were star athletes growing up in texas. >> we same talent, the same dreams, we grew up in the same type of areas. i just had more opportunity. >> reporter: in adulthood, floyd ran into trouble. in 2007 he was charged with armed robbery. in 2009, sentenced to five years in prison as part of a plea deal. >> he'd been through a lot of stuff in his life. he had gone to minnesota to start a new start. >> reporter: when you hear him calling out for his mama, saying he can't breathe repeatedly, how does that hit you? >> makes me so angry, because floyd's one of the strongest people you know. and to hear that scream and that cry for help in his voice, and he cried out for help and -- it's just wrong, man. it's just wrong. >> reporter: alvin was floyd's roommate. he recalled a time when floyd

told him about being pulled over for driving with an expired license plate. >> officer tells him to step out. he said i know they get intimidated by my size, so i stepped back a little bit, saying i'm sorry, i wasn't aware of it and the officer gave him a pass. >> reporter: and tonight new video seeming to contradict a police account showing the moments before floyd was restrained by officers. in the video, police approach floyd's suv, hand cuff him and take him to the sidewalk. then floyd and the officers walk across the street where that fateful video was recorded. >> fund apartmental >> the fundamental issue hire is when he's in a hand cuff, at that time they're using excessive force. >> reporter: police say they were responding to a forgery in process. the video starkly differs from a statement issued monday night by minneapolis police, saying floyd had resisted officers and appeared to be suffering medical

distress. >> usually deadly force is allowed when that individual is resisting, or committed or about to commit a violent felony. for george floyd, he did neither. >> reporter: minutes later, the fire department was called for a patient with trauma to his mouth. they found a pulseless man. the city today releasing the disgraced officers' names. chauvin is the officer with his knee on floyd. the mayor calling for him to be charged with a crime. >> if you had done it or i had done it, we would be behind bars right now. >> and i look forward to asking the jury just to watch and stopwatch for nine minutes, in

silence, and think about not being able to have sustained breath for those nine minutes. how is that not murder? >> reporter: it was just six years ago when those words -- >> i can't breathe, i can't breathe. >> reporter: a plea from garner on the streets of new york turned into a rallying cry. but for gwen carr, they're the last words she'll hear from her son. when you see this scene of george floyd going through what he went through, what popped into your mind? >> it just brought back horrible memories of the day that i found out that my son eric was murdered. i can feel their pain. i know what they're going through. >> reporter: you said you can't bring yourself to watch the

video of george floyd. >> no, i can't. >> reporter: and yet, it's the video that has opened a lot of other people's eyes. >> yes. 11 times he's repeated "i can't breathe", but the disconcerned officers, they paid no attention to his cries. they continue murdering him. and this is just like the sentiments of this young man who was killed the other day. the man was trying to only breathe. >> reporter: now, an outspoken activist to bring justice for so many who aren't being heard. >> i don't want any other mother to suffer like i've suffered. >> reporter: a makeshift memorial now growing on the street where george floyd took his last breath. for those who loved floyd the most like his sister bridget, the loss numbing and the fear haunting, that it could one day take her own sons. >> you never what could happen

when they walk out the door. they need to know how to defend theirself, how to stand up for theirself, how to talk for theirself, because if i don't teach that to them, this world, this cold, cold world will take over my babies. >> reporter: and coming up next, how one young man is hoping to change the conversation about bias and race in america. nd race in america. i thought i had my moderate to severe ulcerative colitis... ...under control. turns out, it was controlling me. seemed like my symptoms were... ...taking over our time together. think he'll make it? so i talked to my doctor and learned humira can help get and keep uc... ... under control when other medications haven't worked well enough. "dad!" "hey!" and it helps people achieve control that lasts. so you can experience few or no symptoms. humira can... ...lower your ability to fight infections. serious and sometimes fatal infections, including tuberculosis,

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philando castile, brianna taylor. you can debate whether michael brown or terrence kutcher lived perfect lives before they were killed. but what black americans and others have been saying for years is that the reason they're dead today is because of the way so many in this country see black people. >> we live in a society that still sees black people as violent, as dangerous, as immoral, as untrustworthy. so, when they have interactions with law enforcement, we don't get a presumption of innocence. >> reporter: asiehsa young is a mother of five who lives in suburban philadelphia. she says seeing men killed this way, ahmaud arbery in georgia, is deeply disturbing. >> when i saw the ahmaud video, actually seeing him get shot and running off and seeing him fall, the first thing that came to my mind was, what if that was my son?

>> i can't just go out and enjoy myself without thinking that there's going to be repercussions to my actions bad repercussions to my actions that could get me killed. >> reporter: we first met this family in 2017. her son was just 15 years old. >> it hurts, because my life just seems like it's nothing in the united states. >> reporter: he had just seen the video that was live streamed online, showing a police officer killing philando castile. >> you can't even go outside without having to be scared for your life. >> reporter: they blamed america for their son's feelings. what do you think are some of the unique burdens of being a parent to a back child? particularly a black boy? >> safety, like i always have to worry about his safety. i believe he's prejudged before people actually get to know him. >> you're powerless. you feel like cannot do anything about it.

>> i am only 15 years, and i feel that i'm possibly going to die before i even turn 18. >> reporter: three years later, some things have changed and so much has not. >> i'm now 18 years old. i'm very happy that i've made it as far as i have in my life. but for me, every day, it's a fight for survival. >> reporter: the prejudice and racism at the root of so many of these incidents is by no means brand new. in 1955, carolyn bryant donham told officials that emmett till whistled at her. days later, her husband and his brother kidnapped the boy, tortured h tortured him and then shot him in the head. in the end, they were acquitted

of murder. it took 62 years to admit it, but in 2017 she confessed to a historian that she lied. >> this isn't just a case of mistaken identity. these are outright attempts to weaponize lies to harm black folks. >> we are people, we feel empathy. we have feelings. and to exterminate someone because of the color of their skin, that's the double. >> reporter: the kids today would call donna mccarron, like the woman who called police on a black family having a barbecue in the park. over this memorial day weekend alone, there were at least three stories of white americans finding black americans suspicious or blaming them for something they did not do. >> i'm going to tell them there's an african-american man threatening my life. >> reporter: what started with a dispute over a dog off its leash turned into this. >> i'm being threatened by a man. please send the cops immediately. >> reporter: she told police she was in danger when she wasn't. video of what happened has cost her both her job and dog.

>> i have a hard time being overly sympathetic for her. she's educated enough to know what could happen when the police come because she called them. >> reporter: tim wise, the author of the book "white like me." amy cooper says the black man behind the camera was trying to feed treats to her dog. she has since apologized. >> if you live in a society where you have been told to fear black folks and have contempt for black and brown bodies, even if you're a decent person 99.9% of the time, you are still conditioned to act in that way. >> reporter: wise hopes during these troubled times more americans can learn empathy. >> the next time a person of color is telling us what their experience is like, maybe we'll actually be able to hear them, because we'll be abe to go back

to this moment, when we, too, were having to second guess our safety every where we went. >> reporter: mike young and his wife pray for the continued safety of their son ej. he's sick and tired of being sick and tired, so he's going to try to help change the system by joining the police force. >> i feel like if, if the law doesn't change and who is involved in it, then nothing else is going to change. >> reporter: their message to america, please don't criminalize blackness. >> i hope that i have a long, very adventurous life and that it doesn't get cut short because somebody wanted to prove something. >> our thanks to steve. up next, remembering aids activist, larry kramer. remembering aids activist, larry cramer.

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finally tonight, remembering larry kramer. playwright and aids and gay rights activist larry kramer knew actions spoke louder than words. >> i always said we're going to produce something that gets attention. >> founding act up and the gay

mens health crisis. he sat down with ted koppel. >> you have led a very active and focussed life. >> useful. i think i've been useful. are you content with it? >> no, because it's not my nature. you have to believe there's more to do, constantly, because there is. >> larry kramer died of pneumonia at age 84. that's "nightline." thanks for staying up with us, goodnight, america. that's "nightline." thanks for staying up with us, goodnight, america. da, ba, da, ba, da, ♪ ♪ jimmy kimmel live ♪ this is ridiculous. >> from his house! >> jimmy: hi, i'm jimmy. welcome to my abode. hey, remember when marie condo

made us throw out all our stuff i want those things back now. it seems like every day we're learning something new while we're in quarantine. for instance, this is something i learned over the weekend. did you know hitler had an alligator? well, he did, and now that alligator is dead. this is a gator named saturn who passed away at age 84. during world war ii, saturn was believed to have been owned by adolf hitler, which is crazy. who knew hitler had his own neverland ranch. the moscow zoo, which is where saturn retired, who issued a statement, even theoretically, if the animal belonged to someone, animals are not involved in war and politics it is absurd to blame them for human sins. now, that's actually true. remember how unfair people were to mussolini's ferret? but how about that, hitler had an alligator. a weird haircut,