Jury finds ex-police officer guilty on all countsChauvin knelt on Floyd’s neck for more than nine minutesDerek Chauvin verdict – follow live updates The Cup Foods in Minneapolis where George Floyd was killed last year. Photograph: Matthew Hatcher/Rex Derek Chauvin has been convicted of murder for killing George Floyd by kneeling on his neck for more than nine minutes, a crime that prompted a wave of protests in support of racial justice in the US and across the world. The jury swiftly and unanimously convicted Chauvin of all the charges he faced – second and third degree murder, and manslaughter – after concluding that the white former Minneapolis police officer killed the 46-year-old Black man through a criminal assault by pinning him to the ground so he could not breathe properly. A lack of oxygen in turn caused brain damage, heart failure and death, in May last year. Huge cheers immediately went up among a crowd of several hundred people outside the heavily fortified courthouse with people chanting “All three counts” and “Whose victory? Our victory!” “Don’t let anyone tell you protest doesn’t work,” a man told the crowd through a bullhorn. Benjamin Crump, a lawyer for the Floyd family, said in a statement: “Painfully earned justice has arrived for George Floyd’s family and the community here in Minneapolis, but today’s verdict goes far beyond this city and has significant implications for the country and even the world. “Justice for Black America is justice for all of America. This case is a turning point in American history for accountability of law enforcement and sends a clear message we hope is heard clearly in every city and every state.” At George Floyd Square, the makeshift memorial that has grown up in the street where Chauvin killed him, Mileesha Smith welcomed the verdicts. “This is just the beginning. God didn’t let him die in vain. We need the change and we got it,” she said. “It’s bigger than the verdict. What we’ve been fighting for this entire time. You’re telling us that we are right.” The convictions sent a wave of relief across large parts of a city that was badly hit by riots and looting in the days after Floyd’s death alongside peaceful protests. Hundreds of national guard troops had been deployed in preparation for an acquittal. Chauvin, wearing a grey suit with a blue tie, was immediately taken into custody to await sentencing. He faces up to 40 years in prison but is likely to receive a shorter sentence according to legal guidelines. The conviction does not put an end to the highly charged case, which reinvigorated the Black Lives Matter movement, as three other officers face trial later this year accused of aiding and abetting murder and manslaughter. The speed of the verdicts, on just the second day of deliberation, suggests that the nine minutes and 29 seconds of video footage of Chauvin kneeling on Floyd’s neck – which sparked the protests that swept the US – was decisive in persuading the jurors a murder had been committed. But many activists remain sceptical about the significance of Chauvin’s prosecution, in part because the case was built around accusing the officer of failing to follow procedure and training rather than examining the fundamental issues around policing in the US, including the use of force. The second-degree murder charge required the jury to find that Chauvin committed a crime by kneeling on Floyd’s neck, which in turn led to his death. The prosecution put a persuasive case to the jury as a string of witnesses – including Chauvin’s former police colleagues, medical experts and bystanders – built a picture of an officer who exceeded his authority and training in pressing his knee into Floyd’s neck for nine minutes and 29 seconds. Medical specialists described how the combined weight of Chauvin and two other police officers pinning Floyd to the street in a prone position would have had the effect of “grinding and crushing him until the very breath, the very life, was squeezed out of him”. In this image from video, defendant, former Minneapolis police Officer Derek Chauvin, arrives for the verdict in Chauvin’s trial for the 2020 death of George Floyd, Tuesday, April 20, 2021, at the Hennepin County Courthouse in Minneapolis, Minn. Photograph: AP A pulmonologist, Dr Martin Tobin, gave graphic testimony about Floyd’s desperate struggle to breathe as the position he was held in, pinned between police officers and the street with his cuffed hands pushed into his chest, meant he could barely use one of his lungs at all. “It’s like the left side is in a vice. It’s being pushed in from the street at the bottom and the way the handcuffs are manipulated … totally interfere with central features of how we breathe,” he said. The doctor told the jury that for nearly five minutes under Chauvin’s knee Floyd was still speaking which shows “that his oxygen levels were enough to keep his brain alive”. After that there is evidence of brain damage. The doctor said Floyd’s leg can be seen kicking out which is a sign of a myotonic seizure caused by lack of oxygen. Tobin said that when Floyd lost consciousness the level of oxygen in his lungs was well below half the normal amount. The defence attempted to claim Chauvin was following his training but in convicting him of second-degree murder the jury rejected the assertion that the former police officer was permitted to put his knee on the victim’s neck for an extended period of time. The defence also attempted to claim that Chauvin’s actions had nothing to do with Floyd’s death, and that he die from a cardiac arrest caused by an enlarged and diseased heart, and exacerbated by drug use. But that did not wash with the jury, perhaps because the excruciating video of Floyd’s suffering revealed an officer who showed cavalier indifference as he defied calls from bystanders and even one of his fellow officers to remove his knee and help the detained man. Prosecution experts said that although Floyd had heart problems, he would not have died if it had not been for the police cutting off his oxygen supply.