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Oxygen True Crime · Running
Unknown Serial Killers of America
Crime · 2025
Next: S2 E9, Reinaldo Rivera · 2026-10-04
Each year the FBI estimates between 25 to 50 active serial killers hunt their prey in America, taking the lives of hundreds of innocent people annually. Often these killings keep a city on edge, a heavy fear permeating the night air before these predators are taken off our streets. Just ask those who lived through the terror of The Night Stalker, Son of Sam or The Grim Sleeper. And years later the public still can't seem to get enough of their stories which continue to be retold in documentaries and limited series. Yet for every Jeffrey Dahmer or Ted Bundy who became part of the zeitgeist and remains with us like a dark specter, there are hundreds of other unknown serial killers whose horrific actions were just as terrifying, if not worse. This new series will profile these unknown serial killers who operated in silence. Their murders haunted law enforcement, who were unable to connect all their sick dots, as more innocent lives were lost until the killers were eventually caught.
E1Glen Rogers2026-08-02 · 60 minWhen four women are found murdered across four states in a single month, police race to track down a charismatic drifter whose charm conceals what experts believe is a deadly rage toward women.E2Paul Stephani2026-08-09 · 60 minWhen a series of brutal attacks on young women terrorizes the Twin Cities, detectives are taunted by a killer who repeatedly calls 911 to confess - forcing investigators into a desperate race to stop him before he kills again.E3Rory Conde2026-08-16 · 60 minAfter a killer dumps bodies along Miami's Tamiami Trail, delivering a chilling message scrawled on a victim's back, a rising body count fuels a desperate hunt -- until one woman's daring escape exposes the predator hiding in plain sight.E4Billy Chemirmir2026-08-23 · 60 minWhen police discover a string of deaths at an upscale retirement community are not natural, they uncover a predator with a motive that defies reason and end up exposing what could be one of the most prolific serial killers in American history.E5Phillip Jablonski2026-08-30 · 60 minWhen police discover the chilling connection of a slaughtered mother and daughter to a convicted murderer, they go on a hunt across state lines to stop a calculating maniacal killer methodically checking victims off his deadly list.E6Bruce Mendenhall2026-09-13 · 60 minAfter a young mother of two is found murdered and posed at a truck stop, investigators launch a desperate manhunt for a long-haul trucker whose killing spree leaves a trail of victims across state lines.E7Nathaniel White2026-09-20 · 60 minE8Gary Ray Bowles2026-09-27 · 60 minBodies of gay men appear along I-95, each marked by the same chilling signature. Investigators connect the murders and reveal a serial killer who slips across state lines. As panic grows, the FBI tries to corner the predator before he strikes again.E9Reinaldo Rivera2026-10-04 · 60 minAs young women are savagely murdered on both sides of the Savannah River, baffled investigators desperately hunt for leads—until a survivor exposes a serial predator hiding in plain sight as a suburban father.
