Former Minneapolis police officer Derek Chauvin was convicted on Tuesday of murdering George Floyd, a milestone in the fraught racial history of the United States and a rebuke of law enforcement's treatment of Black Americans.

A 12-member jury found Chauvin, 45, guilty of all three charges of second-degree murder, third-degree murder and manslaughter after considering three weeks of testimony from 45 witnesses, including bystanders, police officials and medical experts. Deliberations began on Monday and lasted just over 10 hours.

In a confrontation captured on video, Chauvin, a white veteran of the police force, pushed his knee into the neck of Floyd, a 46-year-old Black man in handcuffs, for more than nine minutes on May 25, 2020. Chauvin and three fellow officers were attempting to arrest Floyd, accused of using a fake $20 bill to buy cigarettes at a grocery store.