Minneapolis police arrived at the scene of an alleged theft on Monday, and there they failed the most basic tests of public service and humanity. At least one of the officers committed a horrifying act of abuse against an unarmed man as another stood by callously – and allowed the brutality to continue. And continue.

The African American man, George Floyd, died after being put in a prolonged chokehold by a white officer who knelt on Floyd’s neck as the man lay on the street near a police vehicle. Four officers were fired a day later, but that’s only the start of repercussions. The FBI and state authorities are investigating. Criminal charges against the officers are possible. Members of the public are incensed. Minnesota Gov. Tim Walz has vowed to seek justice.

A version of this editorial first appeared in the Chicago Tribune.