An Unexpected Killer (2019)

A wild and unpredictable journey into homicide investigations where the true identity of the killer comes as a shocking surprise. Combining unparalleled access, captivating interviews and stylish reenactments, each investigation starts in a familiar way - examining the crime scene, interviewing potential suspects… but then something unexpected changes everything. A new witness, an overlooked piece of evidence or even an innovation in forensic science sends investigators on a totally unexpected path that ultimately leads to the conviction of the real killer.

• First Air Date: 2019-12-05
• Last Air Date: 2022-11-18
• Total Seasons: 3
• Total Episodes: 48
• Episode Runtime: 45 min.
• Network: Oxygen