On September 3, 2018, a rancher in Laredo, Texas, discovered a woman’s body shot execution-style on the side of the road. When investigators identified her as a local sex worker, their search for the killer took them into the darkest corners of the city. Then, after days of false starts and dead-ends, another body turned up, terrifying residents and leading law enforcement to conclude a serial killer is at large. More would die before a survivor finally came forward and identified the killer… but his motives proved as confounding as his crimes.