In this chilling episode, we dive into the haunting case of the Black River Killer, a string of mysterious murders that plagued the town of St. Mercy, Louisiana between 1995 and 2002. Each victim was found with a playing card on their chest, and the brutal killings seemed random—until a chilling pattern emerged. We explore the dark history of the town, the victims' unsettling connections, and the arrest of Sheriff Wallace Grayson, the man who once led the investigation. Was he the killer? Or is the true monster still out there, hiding in the shadows? Join us as we unravel the mystery and dive deep into a case that has haunted St. Mercy for decades.