You already know about marquee murderers like Jeffrey Dahmer, Charles Manson and Ted Bundy, whose horrifying crimes have sent chills up spines for decades. But in the new true-crime series Unknown Serial Killers of America on Oxygen, you'll meet a less familiar cast of ruthless killers whose actions are just as gruesome as their more famous counterparts.
Premiering on Sunday, May 18 at 7pm Eastern Time on Oxygen, each hourlong episode of the six-part docuseries "profiles the horrific stories of these unconscionable criminals, and delves into what transformed them into evil monsters," reads the show's official logline. "With first-hand accounts from law enforcement who worked the cases and stories from loved ones of the victims, the series sheds light on serial killers who evaded the spotlight and examines how they were able to get away with their gruesome crimes for so long."
