Long Island Serial Killer | The Trial Of Rex Heuermann

Part 3 of 5: The family fracture that defines the Long Island Serial Killer case.
Asa Ellerup was married to Rex Heuermann for nearly three decades. In the Peacock documentary, she called him her "hero" and said Suffolk County police have "the wrong man." Their daughter Victoria has reached the opposite conclusion—telling producers she believes her father is "most likely the Gilgo Beach serial killer."
Same house. Same twenty-seven years. Two completely different realities about LISK.
In this episode, we examine what the alleged Gilgo Beach Killer's family saw and missed, why mother and daughter diverged, and what prosecutors say may have connected them to the alleged crimes without their knowledge.
According to court documents, every murder Heuermann is charged with allegedly occurred when his family was out of town. Wife in Iceland, Maryland, New Jersey—each absence allegedly corresponded with a victim's disappearance along Ocean Parkway.
But the connection runs deeper. Female hairs found on multiple victims' remains were allegedly consistent with DNA from Asa and Victoria. Neither is accused of involvement. Prosecutors say the hair was transferred from Rex's clothing.
The women in the alleged Long Island Serial Killer's life were allegedly linked to murder victims without knowing.
Victoria spoke with Kerri Rawson, BTK's daughter, about what it means to have an alleged killer for a father. By the documentary's release, she'd reached her conclusion about the Gilgo Beach murders.
Asa still plans to attend every day of the LISK trial. Still calls Rex her husband.
The trial is September 2026. Both will be in that courtroom—one believing innocent, one believing guilty.
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Part 2 of 5: The document prosecutors say proves everything about the Gilgo Beach murders.
Hidden on one of fifty-eight hard drives seized from Rex Heuermann's Massapequa Park basement, forensic analysts found a deleted Microsoft Word file titled HK2002-04. According to court documents, it allegedly contained eighty-seven details prosecutors call LISK's "blueprint for serial murder."
In this episode, we examine every section of the alleged Long Island Serial Killer's planning document and its connection to the Gilgo Beach victims.
According to bail applications and court filings, the document allegedly contained:

"Supplies": cutting tools, acid, hair nets, tarps, cat litter

"TGR" (targets): notes that "small is good" for victims

"DS" (dump sites): including Mill Road in Manorville, where Jessica Taylor and Valerie Mack were found

"Body Prep": "remove head and hands, remove ID marks like tattoos"

"Things to Remember": "hit harder," "heavy rope for neck—light rope broke"

Jessica Taylor was found along Ocean Parkway decapitated with mutilated tattoos. The methodology allegedly matches.
The Gilgo Beach Killer's document also allegedly referenced pages in FBI profiler John Douglas's Mindhunter—passages about perpetrator psychology and crime scene behavior. Prosecutors allege LISK studied how serial killers get caught.
When Suffolk County investigators returned to the home, infrared examination allegedly revealed physical evidence matching the document: adhesive residue on paneling, push pins in drop ceilings.
DA Tierney: "The exact method by which these murders were committed in excruciating detail in that document is in some cases identical to the methodology used to murder the victims."
Rex Heuermann has pleaded not guilty. The Gilgo Beach trial is September 2026.
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Part 1 of 5: How did Rex Heuermann—the man prosecutors call LISK—allegedly hide in plain sight for thirty years?
This is the beginning of our comprehensive series examining the case against Rex Heuermann, the Manhattan architect charged with the Gilgo Beach murders. Seven victims between 1993 and 2010. Remains discovered along Ocean Parkway starting in December 2010. He's pleaded not guilty to all charges. His trial is set for September 2026.
In this episode, we examine the psychology of compartmentalization—the phenomenon that allegedly allowed the Long Island Serial Killer to live as a family man while prosecutors say he was hunting victims whenever his wife and children were out of town.
His ex-wife Asa Ellerup still calls him her "hero." In the Peacock documentary, she said: "I know what bad men are capable of doing. Not my husband. You have the wrong man."
Their daughter Victoria has reached a different conclusion. According to documentary producers, she now believes her father is "most likely the Gilgo Beach serial killer."
Forensic psychologist Scott Bonn explains that killers like BTK and the Green River Killer had "the ability to flip a switch and go from family man to sadistic killer." Former FBI agent Robin Dreeke suggests predators often select partners for traits that make them less likely to investigate red flags.
According to Suffolk County prosecutors, every murder the alleged Gilgo Beach Killer is charged with occurred during windows when his family was traveling. Wife in Iceland, Maryland, New Jersey, Virginia—each absence allegedly corresponded with a victim's disappearance.
Same house. Same twenty-seven years. Two completely different conclusions about who LISK really is.
The mask, if prosecutors are right, didn't slip for three decades.
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The biggest development in the Gilgo Beach case since Rex Heuermann's arrest. On January 13, 2026, Judge Timothy Mazzei finally set a trial date — right after Labor Day, September 2026. But the defense dropped a massive 178-page omnibus motion the night before that could change everything.
Defense attorneys Michael Brown and Danielle Coysh are asking the court to dismiss the Sandra Costilla murder charge entirely. Costilla was killed in 1993 — the oldest case on the indictment. The prosecution's evidence linking Heuermann to her death: a single hair on her outer shirt. Not on her body. Not in a vehicle. Not in his home. The defense argues there's no eyewitness testimony, no surveillance, no digital evidence, no phone records, no fingerprints, no confession, and no murder weapon.
They're also demanding all discovery related to convicted killer John Bittrolff, who's serving time for two Long Island murders with the same victim profile and geography. A former prosecutor previously stated Bittrolff was "probably responsible" for Costilla's death.
The motion challenges twenty search warrants and argues the pizza crust DNA collection violated Heuermann's Fourth Amendment rights — a novel argument that could set precedent for how DNA evidence is collected in New York.
Meanwhile, Andrew Dykes was just arrested in December for the murder of "Peaches" — long assumed to be a Gilgo victim. Different killer. Same beach.
DA Ray Tierney says he's confident. Prosecution responds March 3rd. Defense replies March 17th. Trial begins September 2026. Seven murder charges. Life without parole on the line.
#RexHeuermann #GilgoBeach #GilgoBeachMurders #LongIslandSerialKiller #SandraCostilla #JohnBittrolff #AndrewDykes #Peaches #GilgoBeachTrial #LISK
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This publication contains commentary and opinion based on publicly available information. All individuals are presumed innocent until proven guilty in a court of law. Nothing published here should be taken as a statement of fact, health or legal advice.

He looked like the guy next door — the dependable architect in a button-down shirt, the dad carrying groceries, the man waving from the driveway. But prosecutors say Rex Heuermann was also living a second life beneath that suburban shell: the man behind the Gilgo Beach murders, one of the most disturbing serial-killer cases in modern history.

In this psychological deep dive, Hidden Killers host Tony Brueski exposes the mental architecture of control, deception, and compartmentalization that behavioral experts say may allow someone to construct two worlds that never touch. From high-functioning psychopathy to strict operational secrecy, Tony explores how a person can design blueprints by day and allegedly engineer terror by night — all while maintaining a façade so ordinary that no one close to him ever sees the cracks forming.

Heuermann’s environment reflected his pathology: the soundproof basement, the meticulously organized tools, the rigid routines that enabled a double life to thrive. This episode breaks down how predators weaponize normalcy — and why the people closest to them often become the last to know.

But there’s another layer: the family. As the case moves toward trial, questions loom about whether his ex-wife Asa Ellerup or his daughter could be called to testify. Tony is joined by defense attorney and former prosecutor Eric Faddis to unpack the emotional and legal stakes of family testimony, jury bias, and the impact of years of media coverage on a case already carved into the public consciousness.

This episode blends behavioral profiling with legal strategy to show how monsters hide in plain sight — and how the justice system tries to reveal what the façade so carefully concealed.

Because evil doesn’t always lurk in shadows. Sometimes, it stands at the front door smiling.

#RexHeuermann #GilgoBeach #SerialKillerPsychology #HiddenKillers #TonyBrueski #BehavioralAnalysis #TrueCrimePodcast #AsaEllerup #FamilyTestimony #CriminalMind

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