At the turn of the twenty-first century, Detroit investigators faced a nightmare few police divisions ever multiple serial predators operating at the same time, in the same city, often targeting vulnerable victims in overlapping neighborhoods. To the public, the crimes appeared scattered. A schoolgirl attacked on her way to class. A woman assaulted before dawn. A victim deceived, coerced, or ambushed. A body discovered. Separate incidents. Separate headlines. Inside Detroit’s Major Crimes Division, a more disturbing picture began to form. As detectives compared reports, victim statements, timelines, geography, and behavior, the investigation became something far more difficult than a search for a single suspect. The city was not hunting one predator. It was hunting several.