Quick answer: Rex Heuermann, a 61-year-old Long Island architect, pleaded guilty on April 8, 2026, to multiple murders connected to the Gilgo Beach serial killings on Long Island, New York. Heuermann is accused of killing at least four women — known as the “Gilgo Four” — whose remains were discovered near Gilgo Beach in 2010. His sentencing is pending.
Quick Facts
| Full Name | Rex A. Heuermann |
| Age | 61 |
| Date of Birth | October 1962 |
| Birthplace | Long Island, New York |
| Nationality | American |
| Occupation | Architect |
| Known For | Gilgo Beach serial killings suspect |
| Spouse | Asa Ellerup (filed for divorce following his 2023 arrest) |
| Children | Two |
| Current Status | In custody; awaiting sentencing following April 8, 2026, guilty plea |
Who Is Rex Heuermann?
For more than a decade, the murders of several women along a remote stretch of Long Island’s barrier beach remained one of the most haunting unsolved cases in New York history. The killer, if there was one, had left almost nothing behind. Then, in July 2023, Suffolk County prosecutors announced an arrest that stunned the region: Rex Heuermann, a 59-year-old architect who commuted daily from his Massapequa Park home to a midtown Manhattan office, had been charged with the murders of three women whose remains were found near Gilgo Beach in 2010.
On April 8, 2026, Heuermann entered guilty pleas in Suffolk County Court, bringing a measure of legal resolution to a case that had consumed investigators, devastated families, and captivated the public for nearly two decades.
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This article covers the full history of the case — the victims, the investigation, the evidence, and what comes next.
Source: Associated Press (AP) / Getty Images (use the original licensed source where the image was obtained).
A Long Island Architect with a Double Life
By all outward appearances, Rex Heuermann led an unremarkable life in the New York suburbs. He ran RH Consultants & Associates, a small but active architectural firm located on Fifth Avenue in Manhattan, where he had worked for years on commercial and residential projects. He lived in a large, if aging, Victorian-style house in Massapequa Park with his wife, Asa Ellerup, and their two children.
Neighbors and colleagues described him as socially awkward but professionally competent. He had no prior criminal record. Nothing, on the surface, suggested he was capable of what prosecutors would later allege.
Investigators and court records, however, paint a starkly different picture — one of a man who prosecutors allege spent years leading a secret life involving violence, using burner phones, and deliberately concealing his activities from his family and colleagues.
The Victims: Eight Women, Nearly Two Decades
The murders attributed to Heuermann span what investigators believe to be a long and deliberate killing spree. Prosecutors have charged him in connection with the deaths of multiple women, most of whom were sex workers who advertised online. Many were young mothers. All had families who spent years searching for answers.
The four victims at the center of the case — collectively referred to as the “Gilgo Four” — are:
- Melissa Barthelemy, 24, of New York
- Megan Waterman, 22, of Maine
- Amber Lynn Costello, 27, of New York
- Maureen Brainard-Barnes, 25, of Connecticut
Their remains were found within a concentrated stretch of Gilgo Beach in December 2010, during a search initially prompted by the disappearance of a different woman. As investigators expanded their search, they found additional human remains along Ocean Parkway — ultimately identifying at least ten sets of remains in total over subsequent years.
Heuermann has been charged in connection with the deaths of the Gilgo Four, as well as additional victims, according to court records and statements from the Suffolk County District Attorney’s office. Prosecutors have described him as a “demon” who “walked among us” while maintaining a family life. He has denied some charges while admitting to others through his April 2026 guilty plea.
How the Investigation Unraveled
For years, the Gilgo Beach case generated widespread attention but few concrete leads. It fell under the jurisdiction of the Suffolk County Police Department and, later, a dedicated task force that included federal investigators and multiple state agencies.
The case stalled repeatedly — hampered in part, critics alleged, by institutional dysfunction within the Suffolk County Police Department. A prior police commissioner faced unrelated corruption charges, and investigative resources fluctuated over the years.
The breakthrough came not from a single dramatic discovery, but from the slow accumulation of digital evidence gathered over years of meticulous investigative work. According to prosecutors and reporting by NBC New York, The Associated Press, and CNN, investigators used cell tower records, DNA analysis, and internet activity logs to build their case against Heuermann.
A key turning point came when investigators obtained a pizza crust discarded by Heuermann outside his Manhattan office. According to the Suffolk County District Attorney’s office, DNA extracted from that crust matched DNA evidence recovered from the body of one of the victims — providing a critical forensic link between Heuermann and the crimes.
The Evidence That Broke the Case
The evidence assembled against Heuermann, as described in court documents and public statements by the Suffolk County District Attorney, included several distinct categories:
Cell phone data: Investigators tracked a burner phone allegedly used to contact victims. Cell tower records, according to prosecutors, placed that device near Heuermann’s Massapequa Park home on multiple relevant dates.
DNA evidence: Hair samples recovered from the remains of victims were analyzed and compared to DNA profiles. According to the Suffolk County DA’s office, at least one hair was linked to Heuermann’s wife — suggesting it had been transferred via Heuermann himself — and DNA from the discarded pizza crust linked Heuermann directly.
Internet activity: Prosecutors alleged that Heuermann conducted extensive online research into the investigation, including searches related to the victims and law enforcement activity, from computers traced to him.
Physical surveillance: Law enforcement conducted prolonged surveillance of Heuermann before his arrest, documenting his movements and habits over an extended period.
Heuermann’s defense attorney has challenged elements of the prosecution’s case, and certain charges remain contested. It is important to note that the guilty plea on April 8, 2026, resolved some but potentially not all outstanding charges — the full scope of the plea agreement was subject to court proceedings.
The Arrest and Charges
Rex Heuermann was arrested on July 13, 2023, outside his Manhattan office. The arrest came after years of investigation by a reconstituted task force led by Suffolk County District Attorney Ray Tierney, who took office in January 2022 and made the Gilgo Beach case a stated priority.
At the time of his arrest, Heuermann was charged with three counts of first-degree murder and three counts of second-degree murder in connection with the deaths of Melissa Barthelemy, Megan Waterman, and Amber Lynn Costello. He pleaded not guilty at his arraignment.
In the months following his initial arrest, the Suffolk County DA’s office announced additional charges. According to court records and reporting by the Associated Press, Heuermann was subsequently charged in connection with the death of Maureen Brainard-Barnes, as well as additional victims identified from remains found along Ocean Parkway.
Heuermann’s wife, Asa Ellerup, filed for divorce shortly after his arrest. She has not been accused of any involvement in the crimes.
The Guilty Plea: April 8, 2026
On April 8, 2026, Rex Heuermann appeared in Suffolk County Court and entered guilty pleas. The proceeding marked a significant — and, for many victim families, long-awaited — moment of legal accountability in a case that had unfolded over nearly two decades.
The precise terms of the plea agreement, including which charges Heuermann pleaded guilty to and whether any charges were resolved through the agreement, were part of the official court record filed with Suffolk County Court. Prosecutors from the Suffolk County District Attorney’s office were present, as were representatives of the victims’ families.
Heuermann’s guilty plea removed the uncertainty of a jury trial and — pending sentencing — moved the case toward its legal conclusion. For the families of the Gilgo Four and the other identified victims, the plea represented accountability, even as many described the process as an incomplete resolution to years of grief.
Chronological Case Timeline: 1993–2026
| Year | Event |
|---|---|
| 1990s–2000s | Disappearances of several women later identified as Gilgo Beach victims |
| December 2010 | Remains of the Gilgo Four discovered along Gilgo Beach during search for missing woman Shannan Gilbert |
| 2011 | Additional remains found along Ocean Parkway; investigation expands |
| 2011–2021 | Case remains unsolved; investigative momentum stalls |
| January 2022 | Ray Tierney takes office as Suffolk County District Attorney; Gilgo Beach investigation revived |
| July 13, 2023 | Rex Heuermann arrested and charged with three murders |
| 2023–2025 | Additional charges filed; Heuermann remains in custody |
| April 8, 2026 | Heuermann enters guilty pleas in Suffolk County Court |
| Pending | Sentencing hearing scheduled |
What Happens Next: Sentencing
Following his April 8, 2026, guilty plea, Rex Heuermann faces sentencing in Suffolk County Court. Under New York law, first-degree murder carries a mandatory sentence of life in prison without the possibility of parole.
District Attorney Ray Tierney has stated publicly that his office’s goal is to ensure the maximum accountability possible under the law. Victim family members and their advocates have indicated they intend to address the court during sentencing proceedings.
The case also leaves open broader questions. Investigators have stated that the full scope of the crimes may not yet be established, and law enforcement officials have not formally closed inquiries into additional unidentified remains found along Ocean Parkway.
For the families of Melissa Barthelemy, Megan Waterman, Amber Lynn Costello, Maureen Brainard-Barnes, and the other victims, sentencing will be another step in a process that no legal proceeding can fully complete.
Frequently Asked Questions
Who are the Gilgo Beach victims attributed to Rex Heuermann?
Heuermann has been charged in connection with the murders of at least four women known as the “Gilgo Four”: Melissa Barthelemy, Megan Waterman, Amber Lynn Costello, and Maureen Brainard-Barnes. Additional charges were filed relating to other victims identified from remains found along Ocean Parkway on Long Island. All four of the Gilgo Four were women who advertised escort services online and disappeared between 2007 and 2010.
What evidence links Rex Heuermann to the Gilgo Beach murders?
According to the Suffolk County District Attorney’s office and court documents, key evidence includes: DNA extracted from a pizza crust discarded by Heuermann that matched forensic evidence from a victim; hair samples found on victims linked to his household; cell phone records placing a burner phone allegedly used by the perpetrator near his Massapequa Park home; and extensive internet search records traced to Heuermann.
When did Rex Heuermann plead guilty?
Rex Heuermann entered his guilty plea on April 8, 2026, in Suffolk County Court. The plea followed his July 2023 arrest and nearly three years of criminal proceedings during which he was held in custody.
What sentence does Rex Heuermann face?
Under New York State law, a conviction for first-degree murder carries a mandatory sentence of life in prison without the possibility of parole. Heuermann’s formal sentencing is pending following his April 2026 guilty plea.
Why did the Gilgo Beach investigation take so long?
The investigation faced multiple challenges over more than a decade, including limited forensic technology in the early years of the case, reported institutional issues within the Suffolk County Police Department, and the complexity of linking a suspect to crimes committed across multiple jurisdictions and years. The investigation gained significant new momentum after District Attorney Ray Tierney took office in January 2022 and prioritized the case.
Is Heuermann suspected of additional murders beyond the Gilgo Four?
Investigators and prosecutors have indicated that the case may extend beyond the four primary victims. Remains of additional unidentified individuals were found along Ocean Parkway during the 2010–2011 search. Authorities have stated that the investigation into those cases remains active, though no additional charges beyond those already announced have been confirmed through public court records as of the date of this article.
Emma Clarke is a content writer at Gaukurinn.is, specializing in celebrity news, pop culture, movies, and music. With a strong focus on accuracy and trending topics, she creates engaging and well-researched articles that keep readers informed and entertained.
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