nobody talked about it for 80 years and come to find, that's exactly what happened here. >> my great grandmother lived on black wall street. >> tiffany crutcher said her great grandmother barely esca d escaped. >> she was self-sufficient. she was beautiful. all of a sudden she had to run in fear of her life. jumped on the back of a truck and fled to muscogee. >> rebecca brown kutcher lived until 194. >> we didn't get a chance to talk about the stories because of the fear. they were afraid to talk about it because they thought it might happen again. >> reporter: crutcher said she felt some of that same period after her twin brother terence. >> shots fired! >> -- was shot by tulsa police in 2016. he was up armed. >> i answered the call and i heard my dad, my hero, scream at the top of his lupgs saying "they killed my son, they killed my son, and i just finally asked who killed terence. he said the police. >> he's got his hands up there for us now. >> terence crutcher was h 3 years old when the offer recognized him standing near the side of the rose. >> ready for a taser, i think. >> in the police chopper officers give the kind of play by play. >> that looks like a bad dude, . >> see him walking away with his hands up. i see the visual of him every night that i lay my head down and i pray to god ask him to take this away. >> the mayor took office three months after crutcher's death. a lot of people saw what happened to terence crutcher and said this wouldn't have happened if he was a white man. do you think that's true? >> no, i don't. >> reporter: hundreds turned out to mourn his death, which bynum said was a result of drugs in his system that made him unable to follow directions. officer shelby said he failed to follow orders and she shot him believing he was reaching into his car for a weapon. >> it is more about the really insidious nature of drug utilization than it is about race, in my opinion. >> reporter: you think he's sizing up the situation to -- in 2017 officer shelby spoke with bill whitaker on "60 minutes." >> if i wait to find out if he had a gun or not, i could very well be dead. there's something that we always say. i'd rather be tried by 12 than carried by six. >> but as it turned out, he did not have a gun. >> no, he did not. >> reporter: the protests came after betty joe shelby was found not guilty of manslaughter. 2017, 1921. michelle brown says the same attitudes that led to the black wall street massacre linger in tulsa to this day. >> no one was ever held accountable for the hundreds of lives that were lost. >> reporter: do you think that this memory of the tulsa massacre also shaped the behavior of the police in tulsa in the generations afterwards? >> not as much as racism that continues to be pref leapt in our community. racism is something that is learned at a very young age and during the massacre there were white men who went and gathered their sons and brought them to fight alongside them. they gave them the right to carry a gun and to shoot an innocent black person without any fear of any type of consequences. >> my brother had struggles like millions of other americans. >> reporter: tiff any crutcher reporter:ere you e haaith in that justice system. >> reporter: the mayor announced he's proposing an independent monitor to review police actions. what is the thing you most wanted to change in the aftermath of your brother's killing? >> i wanted to change the culture of policing. this notion of us versus them. >> reporter: so crutcher, a former physical therapist is now a full time advocate for police reform. the police killed your brother. how do you get to a place where you're not afraid of the police? >> i'll be honest. i am afraid. but i do believe that we can get to a place if we change policies and if people are held accountable. >> michelle brown. >> as a president of tulsa, as a black mother, i am scared for my children. i am scared for this younger generation who are tired of being told to pray about it, to sing, to go to church, to put it in god's hands. they're tired of hearing that. >> reporter: 99 years after black wall street, the fear lives on. >> who would think in 2020 in the united states of america that we would fear from the very people that are meant to protect us. >> reporter: tiffany crutcher can't change how her brother died but she hopes there are things she can change for tulsa and for herself. >> i believe that in order for that to happen that the laws at the highest level that give police officers the authority to commit legal murder with no accountedability has to be changed. the use of force standard has to be changed. and when that happens, he could then finally rest in peace. feeling drained? so can your skin! lather, rinse, refresh with dove men + care body wash that washes away germs and moisturizes skin to refresh you and your skin with every shower over time, you go noseblind to the odors in your home. 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(upbeat music) that's why febreze plug has two alternating scents and eliminate odors for 1200 hours. ♪breathe happy febreze... ♪la la la la la. you probably never heard of the national geo spatial intelligence agency. it's essentially america's spies in the sky. using satellites to track terrorist targets and foreign add various. as catherine herridge reports it's focussing cameras on covid-19. >> from above ie coppic landmarks provide a dramatic side show. watch the crowds vanish from the vatican's st. peter's square to tiananmen square and miami beach. >> it was like the world without humanity. >> reporter: but n grrvegs a director stacy dickson is searchling for what's been added. in germany, the octoberfest venue became a covid testing site. last month a satellite spotted these chinese military planes on a base that used to be a reef in the south china sea. >> countries are still doing things that our military, our policy makers need to understand. as the satellites fly overnight you can see what the change is on that day. >> reporter: the highest ranking woman of color in the u.s. intelligence community dixon says she's snapshots share what the state department, cdc and homeland security provide detail. >> we get it from a hall source or a signal source and when a satellite passes over you can confirm whether the activity took place. >> reporter: her agency relies on others for unclassified yimgs. >> it's shared widely. >> reporter: they tracked the rapid con trucks of hospitals in wuhan china that just last month looked like this. but by january it was completely transferred. >> this is like multiple conventions snaemplts that's how they did it? >> that's right. done within a space of about two weeks. >> the department of security later concluded the chinese government intentionally concealed the severity of covid-19. in early january while it stockpiled medical supplies. from an intelligence perspective, this image tells >> rr:s covid9 spread to the middle east, iran's government seemed to minimize it. but massive new grades were detected. >> how did you take social media and marry it up with the satellite images. >> we had videos at the surface that showed people walking to a cemetery. they were showing large tremplgs that had been prepared in case of the growing pandemic. >> reporter: it provided another clue. >> that's most likely lime. a photo doesn't lie. it's just the facts. >> reporter: there are new covid hot spots with protest. now satellite imagery in case you mentioned it, martin truex junior won at martinsville. it was the 11th place finisher, bubba wallace who was the big story. >> i haven't slept much thinking about this race, just everything that's going into it, everything that's going on in the world, trying to race to change the world. >> reporter: that was bubba wallace hours before he hit the track. >> bubba at the same time. >> reporter: his car was painted all black to promote racial equality. >> hardly a scrape. >> reporter: with black lives matter parented on each side as well as did words "compassion, love and understanding". >> it's not that we're saying that other lives don't matter. we're trying to say that black lives matter, too. >> referee: it came two days after he challenged his report to make changes in the stands, too. >> get rid of all confederate fans. >> reporter: nascar announced a ban on the flag. in a statement the association said in part "the presence of the confederate flag at nascar events runs contrary to our commitment to providing a welcoming and inclusive environment." this was a big deal. >> it is. but it has been a long time coming. there's a clear track record against civil rights. that's a very real tradition. >> reporter: the confederate flag is a regular sight among nascar crowds and some believe it's tied to racing culture which means that for driver ray ciccarelli, the ban is not welcome. he said he's ending his career over the changes, adding i could care les about the confederate flag but there are people that do and it a racist. he called nascar's decision political b.s. seven-time nascar champion jimmie johnson disagrees. >> this is really a personal thing for me. enough. i know some want to make it political. all these injustices and inqualities that exist, to me, it's kind of simple. we start with being kind first. >> reporter: with regard to the flag- >> we're dog keep them in the history books and not have them flying in the sky at the racetracks. >> reporter: after bubba wallace calls this a pivotal moment. >> it creates doors that allows the community to come together as one. >> that's the "cbs overnight news" for this friday. reporting from the nation's capital, i'm ed o'keefe. captioning sponsored by cbs >> o'donnell: tonight, a stunning break with the president. america's top military officer says he shouldn't have walked with president trump during protests for a photo-op. >> as a commissioned uniformed officer, it was a mistake. >> o'donnell: new details on the rift between the pentagon and te president. worst day in nearly three months: the dow plunges nearly 7% today, on news that many states are seeing an alarming spike in coronavirus cases. dramatic standoff: breaking news on the intense search for an armed and dangerous man suspected of shooting a police officer in california. back to school? despite cases spiking there, florida's governor tonight says he's ready to open schools at