Serial killer claims he murdered 26 women as new documentary reveals dark secrets

One of California’s most notorious killers is back in the spotlight as a new documentary revisits his crimes and uncovers even darker secrets.

Joseph Naso, the ex-photographer found guilty in 2013 of murdering four women, is now asserting that he was responsible for the deaths of 26 women. This shocking admission is reported by William Noguera, a fellow death row prisoner, who developed a close relationship with Naso over more than ten years at California’s notorious San Quentin State Prison.

The chilling revelations are featured in a new Oxygen documentary, “Death Row Confidential: Secrets of a Serial Killer,” premiering Sept. 13.

“He’s guilty of more than anyone knows,” Noguera says during a preview of the new series. “He told me everything, and I wrote all of it down.” 

Investigators also uncovered a diary detailing more than 100 sexual assaults dating back to the 1950s, many involving underage girls. With the new claims emerging, law enforcement agencies across California and the FBI are now re-examining unsolved cases.

“Our two minds, cop and convict, working together. I know that I can solve unsolved murders. Let’s get them,” Mains said. 

As the documentary reveals, Naso’s crimes may stretch further than anyone ever imagined — and his disturbing legacy continues to haunt both investigators and families seeking closure.

Stepheny Price covers crime including missing persons, homicides and migrant crime. Story tips: stepheny.price@fox.com.

You May Also Like
Rare American Bible and founders’ letters trace faith’s role in birth of the nation

Rare American Bible and Founding Fathers’ Letters Reveal Faith’s Role in America’s Birth

A rarely seen assortment of original letters, family Bibles and artifacts from…
Jacob Frey praises Somali community as Minnesota faces renewed scrutiny over fraud investigations

Jacob Frey Defends Minnesota’s Somali Community Amid Renewed Fraud Investigation Scrutiny

Minneapolis Mayor Jacob Frey addressed members of the city’s Somali community over…
Gun-wielding St. Louis couple in viral 2020 BLM standoff speak out after legal saga

St. Louis Couple Armed in Viral 2020 BLM Protest Speaks Out After Legal Battle

A pair of armed homeowners standing outside their St. Louis residence became…
NYC's demolition of iconic steam plant used in Marvel series violated its own asbestos rules: records

NYC Violated Asbestos Rules During Demolition of Iconic Marvel Filming Site Steam Plant, Records Show

The teardown of a well-known Manhattan steam plant, once used as a…
Lawsuit filed after tree dubbed 'Widow Maker' fatally crushes man at Texas BBQ restaurant

Texas BBQ Restaurant Faces Lawsuit Over Widow Maker Tree That Crushed Man to Death

British fan praises American hospitality and food, recommends visiting Texas British World…
Nancy Guthrie suspect's note is attempt to dodge death penalty, claims ex-FBI agent

Ex-FBI Agent Says Nancy Guthrie Suspect’s Note May Be Bid to Avoid Death Penalty

A former FBI agent says the latest ransom note tied to Nancy…
Woman on motorcycle plows through NYC park, mowing down 9 pedestrians in her path

Motorcyclist Injures 9 Pedestrians After Riding Through NYC Park

Ten people were hurt Sunday after a woman riding a three-wheeled motorcycle…
Grand Theft Auto VI fans rage over 'greedy' paywalls, $100 price tag for new game

GTA 6 Backlash Erupts as Fans Slam Rumored $100 Price Tag and Greedy Paywalls

Now that’s Grand Theft, indeed. Grand Theft Auto fans are blasting what…
Our Chicago: Celebrating Pride Month In Northalsted

Chicago Celebrates Pride Month in Northalsted

Chicago marked Pride Month with one of its signature celebrations, the 55th…
Iran targets US with psychological warfare campaign to manipulate Americans, embarrass Trump: experts

Experts Say Iran Is Using Psychological Warfare to Influence Americans and Undermine Trump

Iranian regime’s ‘hardline rhetoric’ under fire as US deal nears President Donald…
Shipping giant warns Strait of Hormuz chaos is 'new normal' as Tehran shifts 4M barrels

Shipping Giant Warns Strait of Hormuz Disruption Is New Normal as Iran Shifts 4M Barrels

Ceasefire between US and Iran being tested Fox News anchor Shannon Bream…
Grace by Which I Still Stand

The Grace That Keeps Me Standing: A Story of Faith, Strength, and Resilience

It has been some time since I last recorded a more “traditional”…