Killer Siblings

Killer Siblings

Documentary3 SeasonsOxygen
The stories of siblings who worked together to commit some of the most heinous and sophisticated homicides, told through exclusive interviews.
CastMichael Dumas
TV14HD
Get Started

Watch Full Episodes of Killer Siblings

Watch Killer Siblings Season 3

The stories of siblings who worked together to commit some of the most heinous and sophisticated homicides, told through exclusive interviews.

  • Kauffman and McMahan

    Episode 1 - 43 Mins
    Tragedy strikes rural Iowa as two women are found murdered in their homes.

  • Kimbles

    Episode 2 - 43 Mins
    A peaceful town is rocked by the murder of the young wife of a preacher's son.

  • Engels

    Episode 3 - 43 Mins
    When the body of a woman is found in a burnt out station wagon, investigators unravel a deadly plot.

  • Merricks

    Episode 4 - 43 Mins
    A double-homicide in a small Ohio town leads police to a family member with a grudge over $400.

  • Allridges

    Episode 5 - 43 Mins
    Three murders lead to a man who inflicts pain, his honor student sibling and a second set of brothers.

  • Galvan-Cernas

    Episode 6 - 43 Mins
    A home invasion by masked gunmen leads to the murder of a doctor trying to protect his family.

  • Dennys

    Episode 7 - 43 Mins
    A rural community in Georgia is rocked by two double-homicides within 24 hours.

  • Homicks and Woodmans

    Episode 8 - 43 Mins
    Detectives discover a family torn apart by resentment and greed when a wealthy couple are killed.

  • Matting and Smith

    Episode 9 - 43 Mins
    A husband's murder outside his home in suburban Memphis leads investigators to extramarital affairs.

  • Freemans

    Episode 10 - 43 Mins
    Teen brothers are chased across three states after their family is found murdered in their home.

  • Pratt

    Episode 11 - 43 Mins
    A home invasion starts a massive manhunt through Idaho for two bank robbing brothers.

Related Clips

You May Also Like

Frequently Asked Questions

Download the Peacock app and start streaming full episodes of Killer Siblings. View the full list of supported devices.

You can watch Killer Siblings on Peacock. Just sign up and stream every episode.

Peacock currently has 3 seasons of Killer Siblings available for streaming.

Pick Your Plan. Cancel Anytime.

  • Most Popular

    Premium

    Stream 80,000+ hours of the best in TV, movies, and sports.

    • New & Hit Shows, Films, & Originals
    • LIVE Sports & Events
    • Current NBC & Bravo Shows
    • 50+ Always-On Channels

    Monthly

    $7.99/month

    Select

    Annual

    Get 12 Months for the Price of 10

    $79.99/year

    Select

  • Premium Plus

    Everything you get with Premium, plus:

    • No Ads (Limited Exclusions)*
    • Download & Watch Select Titles Offline
    • Your Local NBC Channel LIVE, 24/7

    Monthly

    $13.99/month

    Select

    Annual

    Get 12 Months for the Price of 10

    $139.99/year

    Select

*Due to streaming rights, a small amount of programming will still contain ads (Peacock channels, sports and events, and a few shows and movies).

New & Coming Soon on Peacock

Wicked

Starring Cynthia Erivo and Ariana Grande, the untold story of the witches of Oz arrives on your screen as a generation-defining cinematic event.

Suits LA

Former federal prosecutor Ted Black and his team of brilliant attorneys deal with high-stakes cases in Los Angeles.

Yellowstone

At the intersection of legacy, family and politics, powerful patriarch John Dutton defends his ranch from cutthroat land developers, an Indigenous tribe’s reservation and others who aim to control his land.

Long Bright River

When a series of murders strikes a Philadelphia district plagued by the opioid crisis, a cop realizes her own history might be related to the case.