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CRIME HUNTER: Serial killer Richard Biegenwald returns from depths of hell

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Cite

Hunter, B. (2026, November 14). CRIME HUNTER: Serial killer Richard Biegenwald returns from depths of hell. Toronto Sun. https://torontosun.com/news/world/crime-hunter-serial-killer-richard-biegenwald-returns-from-depths-of-hell

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Toronto Sun · collected 2026-11-14 · by Brad Hunter analysis

Quick Summary

Detectives have identified the body of "Montauk Mary," an unidentified woman found in a wooded area in New York in 1978, as 73-year-old Sofia Margherita Marrone of New Jersey. The investigation concludes that Marrone was murdered by Richard Biegenwald, a serial killer known as the "Jersey Shore Thrill Killer" who was linked to at least nine murders between 1958 and 1982. This report focuses on the cold case resolution after 48 years, highlighting how forensic matches between the murder weapon and Biegenwald’s history ultimately linked the 1978 shooting to the prolific killer.
Written by AI on 2026-11-14, from this article's own text only (the story summary below draws on all the coverage).
See how they differ ↓

AI analysis

Story summary

Sofia Margherita Marrone, known as "Montauk Mary," was identified by Suffolk County investigators on November 13, 2026, nearly 48 years after her body was discovered. She was found on March 22, 1978, by a U.S. Airman near Camp Hero radar tower in Montauk, New York, and her death was linked to Richard Biegenwald, a notorious serial killer associated with nine murders, six of which he was convicted of in New Jersey. Marrone was shot four times, including three bullet wounds to her legs and one to her chest, and her body was found just hours after her death. She was last seen leaving a hospital in Somers Point, New Jersey on March 16, 1978, before her murder near East Overlook Park in Montauk. The identification was made possible through new DNA methods, providing closure in a cold case that had puzzled investigators for decades.

Written for “Serial Killer Linked Through DNA” on 2026-11-14, grounded in this article and the 1 other(s) covering the same event.
Why this leaning score
This article does not take a side on a contested political question, so it has no leaning score. That is an answer rather than a gap: a match report or a rescue can be warmly or critically written without being left or right, and scoring it anyway is how approval of a subject gets recorded as a political position.
No political leaning scored for article 153480 · logged 2026-11-14

How they differ

2 outlets covered “Serial Killer Linked Through DNA”.

What each outlet says

One AI summary per outlet of its latest article on this story, written from that article alone and checked against it. Open the article for the outlet's own words.

Toronto SunThis outlet14 Nov

Detectives have identified the body of "Montauk Mary," an unidentified woman found in a wooded area in New York in 1978, as 73-year-old Sofia Margherita Marrone of New Jersey. The investigation concludes that Marrone was murdered by Richard Biegenwald, a serial killer known as the "Jersey Shore Thrill Killer" who was linked to at least nine murders between 1958 and 1982. This report focuses on the cold case…

CRIME HUNTER: Serial killer Richard Biegenwald returns from depths of hell (this article)
Fox News13 Nov

Cold case detectives in Suffolk County, New York, have identified an unidentified woman known as "Montauk Mary," found dead in 1978, as Sofia Margherita Marrone from New Jersey. Using new DNA methods, they suspect she may have been a victim of Richard Biegenwald, the "Thrill Killer," who was imprisoned for six murders between 1958 and 1982. Marrone was last seen alive on March 16, 1978, and her body was found six…

MICHAEL RUIZ: Cold case DNA unmasks 'Montauk Mary' as cops probe link to Jersey Shore 'Thrill Killer' →

Compared with similar articles

This article reads unscored and hedges 2% of its claims. Each row says how that neighbour differs.

Story

Serial Killer Linked Through DNA
Crime & Law · 2 article(s) covering the same event. See how they differ ↑
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
48
sentences that state something as happening or true
Uncertain
2%
1 of 48 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
96/100
Toronto Sun's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
2
Crime & Law
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-11-14 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Toronto Sun · 370 article(s) · 0 correction(s) detected
No corrections detected for this publisher. That may mean careful reporting, or simply that nothing has been checked.

Who wrote this

Brad Hunter
6 article(s) here · 1 carrying a prediction
For homicides detectives, clearing Montauk Mary’s murder would take a staggering 48 years.
The victim was as close as one could get to royalty in the surfing world.
He is accused of orchestrating the fight and knowing there would be violence.
Fang Fang also developed tight ties with two Midwestern mayors using sex to advance China’s nefarious agenda.
The horrors they inflicted may differ, but their commonality is that their crimes were so egregious, such an affront to decency that only death would set them and the public free.
Also by Brad Hunter
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 6 articles by Brad Hunter →

Topics

Air Force Long Island Montauk New Jersey United States

Subjects

Biegenwald PERSON · 11× New Jersey GPE · 5× Marrone PERSON · 4× Richard Biegenwald PERSON · 2× Air Force ORG · 1× Jane Doe PERSON · 1× Long Island GPE · 1× Montauk GPE · 1× Montauk Mary PERSON · 1× United States GPE · 1×

Narrative

“Mr. Biegenwald caught our attention because he was linked to nine murders, six of which he was convicted of in New Jersey,” Tierney said, adding the killer “was known to pick up his female victims while they were walking in towns along the Jersey Shore.”
framing: assertive · carried by 1 article(s) · first seen 2026-11-14
For homicides detectives, clearing Montauk Mary’s murder would take a staggering 48 years.

Claims (48 extracted, 1 hedged)

Cops tagged her with the moniker “Montauk Mary,” which is a decidedly better handle than Jane Doe. asserted
which → tag → Doe
The older woman’s body was discovered by a United States Air Force member on his lunch break in a wooded area near Montauk, NY, at the extreme eastern end of Long Island. asserted
body → discover → Island
She was lying face up, staring into oblivion and carrying no identification. asserted
She → lie → identification
Shot four times with a .22 Cops revealed their victim had died just hours before she was discovered She had been shot four times – three shots to the legs and a clincher to the chest. asserted
She → shoot → chest
The bullets were rare short rounds and came from a .22 calibre handgun. asserted
bullets → come → handgun
For homicides detectives, clearing Montauk Mary’s murder would take a staggering 48 years. asserted
clearing → clear → years
There was a paucity of clues: She was wearing an untagged plaid tweed coat, a multicoloured dress and orange slippers. asserted
She → be → coat
Several witnesses believed they had recognized her as a regular at a local restaurant and had seen her driving a 1960s-era yellow convertible. asserted
her → believe → convertible
The cops never forgot “Montauk Mary” – and this past week they announced she has finally been identified. asserted
she → forgot → Mary
She was a 73-year-old from New Jersey named Sofia Margherita Marrone, born in 1905. asserted
She → name → 1905
Detectives were also certain they knew who murdered Marrone – and why. asserted
who → know → Marrone
Marrone was last seen six days before her death, on March 16, 1978, as she left Shore Memorial Hospital in Somers Point, New Jersey, Suffolk County DA Raymond Tierney said. asserted
Tierney → see → Point
Biegenwald ‘linked to nine murders’ asserted
Biegenwald → link → murders
Cops believe her killer was Richard Biegenwald, a serial killer called the “Jersey Shore Thrill Killer.” asserted
killer → believe → ?
He would not be around to answer questions because he pegged out in a Garden State prison in 2008. asserted
he → answer → 2008
But the gun and the bullets used to kill Marrone matched those used in a slew of other murders. asserted
gun → use → murders
Between 1958 and 1982, Biegenwald murdered at least eight other men and women and detectives suspect there were more. asserted
detectives → murder → men
“Mr. Biegenwald caught our attention because he was linked to nine murders, six of which he was convicted of in New Jersey,” Tierney said, adding the killer “was known to pick up his female victims while they were walking in towns along the Jersey Shore.” asserted
they → catch → Shore
One witness said on the morning Marrone’s body was discovered that a man with a beard in a gold-coloured car with New Jersey tags was in the area. asserted
man → say → area
The description matched Biegenwald. asserted
description → match → Biegenwald
First murder at 18 in 1958 Born in Staten Island in 1940, the son of a violent, alcoholic father, Biegenwald was on the fast tract to doom from childhood. asserted
Biegenwald → bear → childhood
There were the developmental and behavioral problems from the get go and he was institutionalized for a brief time. asserted
he → be → time
He set fire to the family home and was gambling and drinking by the time he was eight. asserted
he → set → time
When on furlough from kiddie jail, he would steal money from his mother. asserted
he → steal → mother
When Biegenwald was sprung in 1958, he graduated to the big time. asserted
he → spring → time
On Dec. 18, 1958, Biegenwald robbed a Bayonne, New Jersey grocery store with an accomplice, and store proprietor Stephen Sladowski was shot and killed. asserted
Sladowski → rob → accomplice
The teen killer was picked up two days later in Salisbury, Maryland following a police-involved shooting. asserted
killer → pick → shooting
He sounds great, right? asserted
He → sound → ?
The thrill killer did 17 years in the big house before someone thought it was a good idea to release Biegenwald on parole. asserted
it → do → parole
But after his release in 1975, his bloodlust could not be quenched but temporarily. uncertain
bloodlust → quench → 1975
RECOMMENDED VIDEO ‘Hunting for someone to kill’ “Mr. Biegenwald was not hunting for drugs, he was hunting for someone to kill,” District Attorney James Fagen told reporters in 1983. asserted
Fagen → recommend → 1983
And kill he did. asserted
he → kill → kill
When it came to his first victim, John P. Petrone, it was very personal for Biegenwald, who suspected the ex-con was a jailhouse rat and was trying to extort his dear old mom. asserted
con → come → mom
He was rubbed out in June 1978 – 20 years after the killer last committed a homicide in Jersey. asserted
killer → rub → Jersey
More victims followed: Maria Ciallella (1981); Deborah Osbourne (1982); Virginia Clayton (1982); Anna Olesiewicz (1982), and drug dealer William Ward, 34, was the grand finale. asserted
Ciallella → follow → ?
On Sept. 21, 1982, Ward was shot to death in the backyard of Biegenwald’s Asbury Park apartment. asserted
Ward → shoot → apartment
Ward had been struggling with a Biegenwald pal when the serial killer parked five bullets into his head. asserted
killer → struggle → head
On Jan. 22, 1983, the violent weirdo was arrested charged with five of the murders. asserted
weirdo → arrest → murders
One of victims was an 18-year-old named Anna Olesiewicz. asserted
One → name → victims
For killing her, Biegenwald was sentenced to die in the state’s electric chair. asserted
Biegenwald → kill → chair
…and 8 more, not listed.
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