An Unexpected Killer - Season 3 - Eps 18: Murder After Midnight
After a Texas mother is found murdered in an office bathroom, her husband admits a disturbing past while police chase down a serial killer; the case goes cold until an oversight leads to a surprise suspect and an FBI manhunt south of the border.
About An Unexpected Killer

Title: An Unexpected Killer
First Air Date: 2019-12-05
Last Air Date: 2022-11-18
Status: Returning Series
Rating: 7.5/10 (from 2 votes)
Language: EN
Seasons: 3
Total Episodes: 48
Network: Oxygen
Genres: Documentary, Crime
Production Companies: Ontario Creates, Our House Media
Synopsis
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.