Kate Nash cried when she watched the video of George Floyd struggling to breathe as a police officer knelt on his neck.
It's 3,600 miles from the Bogside to Minneapolis, but that image of an unarmed civilian being brutalised by those meant to uphold law and order resonates in Derry more than in most places in the world.
Kate's 19-year-old brother, Willie, was shot dead on Bloody Sunday. The hearts of those still demanding justice for what happened that day 48 years ago reside with those yearning for it in US cities now.
"I watched George Floyd lying handcuffed on his stomach, minutes away from death, calling out to his dead mother - 'Mama! Mama!' - for help," says Kate.
"It was excruciating, the tears just welled up inside me. That poor, poor man, pleading for mercy from the police, but none being shown.
"I thought of 30 January 1972, and Paddy Doherty lying dying on the ground, begging for help, and Barney McGuigan trying to reach him waving a white handkerchief when he was shot by the Paras, too."
Last Friday night, Kate organised a small vigil for George Floyd at Free Derry Corner. "Solidarity with the African American struggle is strong here," she says.
"Of course, our experiences are different.
"We have faced nothing like the institutional racism that black people have endured worldwide for centuries, or the horrors and history of slavery. That's on another scale entirely, but there are parallels.
"We do know something about discrimination, great loss and state brutality. Representatives from Black Lives Matter attend our annual Bloody Sunday march. A few years ago, they led it jointly with us."
Kate says the Floyd family will be tortured by the lack of humanity shown to George as he lay unconscious on the ground. "My father, Alex, was on the Bloody Sunday march with Willie. He ran out to help him, but he was shot in the arm and side.
"The soldiers threw Willie's body into the Saracen like a sack of potatoes, with the bodies of John Young and Michael McDaid.
"Daddy was a brave man, but he was in a state of shock. Years later, he beat himself up about why he had done nothing, why he had let them take Willie's body. He suffered severe post-traumatic stress.
"He was terrified if he saw soldiers. If there was a helicopter overhead, he'd imagine he saw Paras dropping out of it. He was afraid in his own bedroom."
Kate believes that it's important that we hear as many as possible personal details about George Floyd's life, that his memory is not reduced to that awful image of his face under a police officer's knee..
"That should not define him," she says. "I loved hearing how he was a star football player at high school, how he was a rapper in Texas, how he couldn't dance. The interview with his wee daughter, Gianna, was just heartbreaking.
"We didn't want Willie known just as a Bloody Sunday victim. He played the guitar, he loved country and western music - he never stopped listening to Marty Robbins and Johnny Cash.
"And he was forever playing practical jokes on us - putting a shoe at the top of the door, so it fell down when we came in. He was a great boxer as well. My brother, Charlie (who represented Ireland at the 1972 Olympics), thought Willie was good enough to fight for titles, but he had no interest in that.
"I think it's important to hear all these wee things, that the person isn't lost in the tragedy."
Damian 'Bubbles' Donaghy was the first civilian to be shot on Bloody Sunday. The 15-year-old was fired upon as he reached to retrieve a disused rubber bullet as a souvenir. He spent seven months in hospital recovering. His leg injury still gives him pain.
"I've watched what's happening in America with more and more fury every day," he says. "To see tear gas and rubber bullets used to clear a crowd near the White House to give Donald Trump a photo opportunity is unbelievable."
Bloody Sunday made international news because camera crews and photographers were there to film it.
"Without that, the state would have got away with its lies," says Damian. "But the pictures told the truth about what happened to us. Everybody across the globe could see it.
"The mobile phone and other recordings of George Floyd's death has done the same. The world is watching and the world cares."
Liam Wray is filled with "horror and despair" as he observes events in the US. His 22-year-old brother, Jim, was running away from the Paras when he was shot on Bloody Sunday.
The first bullet knocked him to the ground. He called for help and tried to lift himself up. He was shot again in the back.
"I see and hear the anger of black people in the US," Liam says. "I get what they're feeling. It's not just about the individual police involved in such an act - the few bad apples - it's about the whole rotten system.
"When people are treated as the enemy at the top, then that leads to brutal actions from police and soldiers on the ground.
"I've seen some American police kneel in solidarity with Black Lives Matter. That's very welcome but there needs to be policy change at the highest level."
Liam finds pictures of police brutality in other cities across the US deeply disturbing. The overwhelming majority of protesters have been peaceful and this must be maintained, he says.
"To retaliate with violence only damages your own community. After Bloody Sunday, I was very angry. There was a total loss of confidence in the state.
"I'd have gone out and shot somebody, but I was lucky enough to have guidance not to go down that road. When they have their hand on your throat, the chance to fight back - even for one day - may feel good. But violence is not the answer. It lets them demonise you more. You must never lose your moral compass."