Gilgo Beach serial killer pleads guilty, ending decade-long case

Rex Heuermann admits to murders of four women, bringing closure to notorious Long Island investigation

Apr. 9, 2026 at 11:36am

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An extreme close-up photograph of a tattered piece of rope, dramatically lit by a harsh camera flash against a pitch-black background, conceptually representing the physical evidence from the Gilgo Beach serial killer case.The sudden resolution of the Gilgo Beach serial killer case exposes the grim physical evidence that haunted Long Island for over a decade.Gilgo Today

In a shocking turn of events, Rex Heuermann, the man accused of being the Gilgo Beach serial killer, has pleaded guilty to the murders of four women whose bodies were discovered along a remote stretch of Long Island coastline over a decade ago. The case had remained unsolved for years until Heuermann's arrest in 2023 based on DNA evidence and cell phone records.

Why it matters

The Gilgo Beach murders were one of the most high-profile and disturbing unsolved crime cases in recent memory, sparking a massive investigation that lasted for over 10 years. Heuermann's guilty plea brings a sudden and unexpected resolution to the case, providing some closure for the victims' families and the local community that had lived in fear of the serial killer.

The details

Heuermann, a 55-year-old architect from Massapequa, New York, admitted in court to strangling Melissa Barthelemy, Amber Costello, Megan Waterman, and Maureen Brainard-Barnes, whose bodies were found along Ocean Parkway near Gilgo Beach between 2010 and 2011. Prosecutors said Heuermann targeted sex workers and lured them to his home before killing them and dumping their bodies. The case had gone cold for years until new forensic technology and cell phone data helped investigators link Heuermann to the crimes.

  • The first of the four victims, Melissa Barthelemy, went missing in July 2009.
  • The bodies of the four victims were discovered along Ocean Parkway near Gilgo Beach between December 2010 and April 2011.
  • Heuermann was arrested in July 2023 based on DNA evidence and cell phone records.
  • Heuermann pleaded guilty to the four murders on April 9, 2026.

The players

Rex Heuermann

A 55-year-old architect from Massapequa, New York, who has pleaded guilty to the murders of four women whose bodies were discovered along Gilgo Beach over a decade ago.

Melissa Barthelemy

One of the four victims whose body was found along Ocean Parkway near Gilgo Beach in 2010.

Amber Costello

One of the four victims whose body was found along Ocean Parkway near Gilgo Beach in 2010.

Megan Waterman

One of the four victims whose body was found along Ocean Parkway near Gilgo Beach in 2010.

Maureen Brainard-Barnes

One of the four victims whose body was found along Ocean Parkway near Gilgo Beach in 2010.

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What they’re saying

“This is a tragic case, but we are grateful that the perpetrator has finally been brought to justice. Our hearts go out to the families of the victims who have waited over a decade for closure.”

— Suffolk County District Attorney Raymond Tierney, Suffolk County District Attorney

What’s next

Heuermann is expected to be sentenced to life in prison without the possibility of parole at a hearing scheduled for May 2026.

The takeaway

The Gilgo Beach serial killer case has haunted Long Island for over a decade, leaving a community in fear and victims' families searching for answers. Heuermann's guilty plea brings an abrupt end to the investigation, providing some closure but also raising questions about how such a prolific killer was able to evade capture for so long.