Commemorating the D-Day invasion

One morning last month, Anthony Douglas stood at the front of a classroom at Englewood STEM High School and asked a group of boys how long they thought it took for someone to die from blood loss. One guessed two minutes. Another guessed five. “You’re all wrong,” Douglas said. “You get hit in the right spot, you can bleed out in seconds.” Such are the lessons taught to some teenagers in Chicago, a city just beginning another summer and preparing to grapple with the violence it can bring. Douglas moved...