How many seasons does Unknown Serial Killers of America have?

Unknown Serial Killers of America has 2 seasons and 13 episodes.

Is Unknown Serial Killers of America renewed or canceled?

Unknown Serial Killers of America is currently returning. A premiere date has not been announced yet.

Where can I watch Unknown Serial Killers of America?

Unknown Serial Killers of America is available on Oxygen. You can stream it on Peacock, YouTube TV, OXYGEN.

Unknown Serial Killers of America

Name: Unknown Serial Killers of America
Genre: Documentary, Crime
Released: 2025-05-18
Rating: 8

RETURNING2 Seasons13 Episodes★ 8.0

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NetworkOxygen

First AiredMay 18, 2025

Last AiredSep 13, 2026

GenreDocumentary, Crime

Explores the chilling cases of lesser-known serial killers whose crimes went unnoticed for years, leaving a trail of fear and unsolved murders before they were finally caught.

RENEWED

Unknown Serial Killers of America has been renewed but a premiere date has not been announced yet. Track this show to get an alert when a date is confirmed.

WHERE TO WATCH

OXYGEN

Some links may earn us a commission. Data via JustWatch / TMDB

Seasons & Episodes2 seasons · 13 episodes

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E1Glen Rogers

Aug 2, 202643m

When 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 Stephani

Aug 9, 202643m

When 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 Conde

Aug 16, 202643m

After 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 Chemirmir

Aug 23, 202643m

When 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 Jablonski

Aug 30, 202643m

When 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 Mendenhall

Sep 13, 2026

After 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 White

Sep 20, 2026

After a series of victims are found in upstate New York, posed and stabbed beyond recognition, police pursue a maniacal suspect seemingly unable to control a compulsive urge to kill.

About Unknown Serial Killers of America

Unknown Serial Killers of America is a documentary, crime series on Oxygen. The show first aired on May 18, 2025 and currently has 2 seasons and 13 episodes. Unknown Serial Killers of America has been renewed and is returning for more episodes. It has a rating of 8.0/10 based on 2 votes.