There was one Black police officer in the group, and when every white cop ignored her, my mother focused on him. “Please,” she said, crying so much her sweet voice was thick. She sank to her knees before this cop. “Please don’t let them kill my son.” She said it over and over, a sobbing prayer. “Please don’t let them kill my son.” The Black cop would not look at her. He would not acknowledge my mother’s existence or anything that they shared in common.