On December 15, 1921, gunshots echoed across Atlanta's famous Peachtree Street moments before a handsome young man darted away from Kaiser's Jewelers. Frank DuPre left in his wake a dead Pinkerton guard and a missing ring. As Christmas shoppers looked on in panic, he raced through the Kimball House Hotel and shot another victim. The brazen events terrified a crime-filled city already on edge. A manhunt captured the nineteen-year-old, unemployed DuPre,...