This week at the trial of former Minneapolis police officer Derek Chauvin, numerous members of the Minneapolis Police Department have taken the stand and testified that Chauvin violated policy by kneeling on Floyd’s neck for nine-and-a-half minutes, and the emergency room doctor who tried to save Floyd’s life said his chances of living would have been higher if CPR had been administered sooner. The trial is putting a spotlight on “the disproportionate killing of Black people by police” in the United States, says Marq Claxton, a retired New York Police Department detective who is now director of the Black Law Enforcement Alliance. He argues that until police officers are arrested, charged and convicted for such killings, “these tragedies will continue to occur.”