A white former cop in the US has been convicted of murdering African American George Floyd. A jury deliberated less than 11 hours before unanimously finding the 45-year-old Derek Chauvin guilty of all three charges against him -- second-degree murder, third-degree murder and manslaughter. Chauvin faces up to 40 years in prison. A crowd gathered outside the heavily guarded downtown Minneapolis courtroom erupted in cheers when the verdicts were announced. In May last year, Chauvin was seen on video kneeling on the neck of Floyd as he lay facedown and handcuffed on the ground saying repeatedly "I can't breathe." FLoyd's death had sparked widespread anti-racism protests across the US.