Death Row Confidential: Secrets of a Serial Killer
TV Show · Documentary · Crime

Over a decade ago, a gruesome killer was convicted of murdering four women. Though police could never prove it, investigators always suspected there were many more victims. But the killer took his secrets with him to San Quentin. When he arrived on death row, a fellow inmate offered him protection on the yard. Over the course of a decade, the killer confided in this inmate, revealing details about 20+ unsolved murders for the first time. This inmate-turned-informant has now handed over 300 pages of detailed notes about the killer's unsolved murders to Ken Mains, an ex-FBI investigator and cold case detective. Mains will work together with the informant to uncover new victims, bring closure to families, and expose one of America's most prolific serial killers in real-time.

2025 · 1h 24m

Season 1

  • EPISODE 1
    Unmasking Naso
    Retired Detective Ken Mains teams up with an inmate on death row to expose the secrets of unknown serial killer Joseph Naso; while bringing closure to a victim's family, Ken uncovers that Naso likely killed many more women than police ever thought.
    1h 24m
  • EPISODE 2
    Husband, Father... Serial Killer
    Retired detective Ken Mains and inmate Bill Noguera uncover chilling new details about serial killer Joseph Naso, who posed as a pro baseball team's photographer to hunt women and may have gone on a killing spree in Sin City.
    42m
  • EPISODE 3
    The Cop & the Convict
    Bill gets a written confession from serial killer Joseph Naso, cracking open another cold case; Mains uncovers more potential victims from an infamous case in New York.
    42m

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About

Death Row Confidential: Secrets of a Serial Killer

Documentary

Over a decade ago, a gruesome killer was convicted of murdering four women. Though police could never prove it, investigators always suspected there were many more victims. But the killer took his secrets with him to San Quentin. When he arrived on death row, a fellow inmate offered him protection on the yard. Over the course of a decade, the killer confided in this inmate, revealing details about 20+ unsolved murders for the first time. This inmate-turned-informant has now handed over 300 pages of detailed notes about the killer's unsolved murders to Ken Mains, an ex-FBI investigator and cold case detective. Mains will work together with the informant to uncover new victims, bring closure to families, and expose one of America's most prolific serial killers in real-time.

Information

Studio
oxygen.com
Released
2025
Rated
M
© 2025 Oxygen Media LLC ALL RIGHTS RESERVED

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Select a country or region

Africa, Middle East, and India

  • Armenia
  • Azerbaijan
  • Bahrain
  • Botswana
  • Brunei Darussalam
  • Cape Verde
  • Egypt
  • Eswatini
  • Gambia
  • Ghana
  • Guinea-Bissau
  • India
  • Israel
  • Jordan
  • Lebanon
  • Mauritius
  • Mozambique
  • Namibia
  • Niger (English)
  • Oman
  • Qatar
  • Saudi Arabia
  • South Africa
  • Sri Lanka
  • Tajikistan
  • Turkmenistan
  • Uganda
  • United Arab Emirates
  • Zimbabwe

Asia Pacific

  • Australia
  • Cambodia
  • Fiji
  • 香港 (廣東話–繁體)
  • Indonesia (English)
  • 日本
  • Lao People's Democratic Republic
  • 澳門 (廣東話–繁體)
  • Malaysia (English)
  • Micronesia, Federated States of
  • Mongolia
  • New Zealand
  • Philippines
  • Singapore
  • 대한민국
  • 台灣
  • Thailand
  • Turkmenistan
  • Vietnam

Europe

  • Armenia
  • Österreich
  • Belarus
  • Belgium
  • Bulgaria
  • Cyprus
  • Czechia
  • Denmark
  • Estonia
  • Finland
  • France (Français)
  • Deutschland
  • Greece
  • Hungary
  • Ireland
  • Italia
  • Latvia
  • Lithuania
  • Luxembourg (English)
  • Malta
  • Moldova, Republic Of
  • Nederland
  • Norway
  • Poland
  • Portugal (Português)
  • Россия
  • Slovakia
  • Slovenia
  • España
  • Sverige
  • Schweiz
  • Türkiye (English)
  • Ukraine
  • United Kingdom

Latin America and the Caribbean

  • Anguilla
  • Antigua and Barbuda
  • Argentina (Español)
  • Bahamas
  • Belize
  • Bermuda
  • Bolivia (Español)
  • Brasil
  • Virgin Islands, British
  • Cayman Islands
  • Chile (Español)
  • Colombia (Español)
  • Costa Rica (Español)
  • Dominica
  • República Dominicana
  • Ecuador (Español)
  • El Salvador (Español)
  • Grenada
  • Guatemala (Español)
  • Honduras (Español)
  • México
  • Nicaragua (Español)
  • Panamá
  • Paraguay (Español)
  • Perú
  • St. Kitts and Nevis
  • Trinidad and Tobago
  • Venezuela (Español)

The United States and Canada

  • Canada (English)
  • Canada (Français)
  • United States
  • Estados Unidos (Español México)