A judge sentenced former Minneapolis police officer Derek Chauvin to 22½ years in prison on Friday for the murder of George Floyd during an arrest in May 2020, video of which galvanized a national protest movement against racism.

A jury found Chauvin, who is white, guilty on April 20 of unintentional second-degree murder, third-degree murder and second-degree manslaughter in the death of Floyd, a Black man. The verdict was widely seen as a landmark rebuke of the disproportionate use of police force against Black Americans.

Chauvin's sentence was one of the longest given a former police officer for using unlawful deadly force in the United States, Minnesota Attorney General Keith Ellison, whose office prosecuted the case, told reporters. Successful prosecutions of police officers in such cases have been rare.