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Rex Heuermann's house

Suspect House Massapequa Park, New York

This is Rex Heuermann's house.

It is located at 105 1st Avenue in Massapequa Park, New York.

On the evening of July 13th, 2023, Heuermann was arrested in connection with the Gilgo Beach serial killer murders. Up until that point, he had never been publicly viewed as a possible suspect in the case.

The arrest took place more than 12 years after the police discovered the skeletal remains of several sex workers near Gilgo Beach.

105 1st Avenue
Initially, the authorities charged him with the murders of the Gilgo Four (2007-2010). However, he has since been indicted for three of the earlier Gilgo killings (1993-2003).

Heuermann shared this home with his wife, Asa Ellerup, their daughter, Victoria, and Ellerup's son from a previous relationship, Christopher Sheridan.

He was born on September 13th, 1963, to Delores and Theodore J. Heuermann (1925-1975).

This residence was his childhood home. In May 1994, he purchased the property from his mother for $170,000.

Blueprints
We created this 3D model of the layout using the original 1950s blueprints. A full virtual tour is available on our YouTube channel. Note that there is no wall between the dining room and kitchen, as it has an open layout. The "Den" functioned as Heuermann's home office.

Heuermann has been described as an avid hunter and carpenter who built furniture at his home workshop. A former coworker told New York Magazine that he liked to hunt deer and elk on Long Island and in upstate New York. He also hunted bears on occasion.

Rex Heuermann
Heuermann is approximately 6'3".

His former classmates at Alfred G. Berner High School said that he was a nerdy, reclusive, and awkward individual who "didn't fit in." Despite his size, he was a regular target for bullies, as he never fought back.

Neighbors said that his house was so noticeably rundown that kids would avoid it at Halloween. In the past, one neighbor had even jokingly remarked that there were bodies buried on the property.

105 1st Avenue
This Google Street View image was captured in November 2011, less than a year after the find at Gilgo. The house was built in 1956. It has three bedrooms, one bathroom, and is 1,323 square feet in size. The covered-up vehicle on the left is a Ford M151 military jeep. During a lawsuit deposition in 2018, Heuermann said that he had difficulty driving it because it was a stick shift (manual). Consequently, he kept it wrapped up in the driveway.

Heuermann was a seasonal employee at Jones Beach State Park during the summer of 1981. He also worked there between May 3rd, 1982, and October 24th, 1984. The park is located close to where the Gilgo Beach victims were found.

Heuermann began working as an architect in Manhattan in 1987. He commuted to work on the Long Island Rail Road (LIRR).

During the early 1990s, he worked for an architect called Harvey Rothenberg.

In 1994, he founded the architecture company RH Consultants & Associates, Inc. in Manhattan.

Architect
At the time of the killings, Heuermann's architecture company was situated at 19 West 36th Street in Manhattan.
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In 1996, he married Ellerup.

Asa Ellerup
Heuermann married an Icelandic woman named Asa Ellerup in April 1996. Notably, that was the same month that the second known victim, Karen Vergata, was found. Ellerup filed for divorce following her his arrest. The revelations understandably shocked, traumatized, and depressed her and their two children. Despite this, she has publicly stood by him, maintaining her belief that he is incapable of such crimes.

In an interview in 2022, he described himself as an architectural consultant and "troubleshooter" who helps clients and other architects deal with the NYC Department of Buildings.

Living Room
The living room. Source: The Gilgo Beach Killer: House of Secrets.

Over the years, there was much speculation that the killer had a connection to Manhattan.

Jessica Taylor was reportedly last seen near the Port Authority Bus Terminal, while Maureen Brainard-Barnes was picked up at a motel on West 46th Street.

The killer had also repeatedly called the sister of Melissa Barthelemy from the city.

The authorities were aware of a possible Massapequa connection since 2012, as the FBI had noticed commonalities with cellphone activity in that area.

Two of the victims' phones had gone dead in the vicinity shortly after they were picked up by an unknown client who had contacted them using burner phones. Furthermore, the phone that was used to contact Amber Lynn Costello had seemingly traveled from Manhattan to Massapequa Park before eventually making its way to her neighborhood in West Babylon.

Neighbors referred to Heuermann as an average "family man" with a wife and two children. Others claimed that he was a reclusive individual who would sometimes glare at them while he was chopping wood in his front yard.

Following his arrest, the authorities spent nearly two weeks painstakingly searching his house, removing various items, and digging up the backyard.

Investigators believe that the killings took place in the basement.

Basement
We constructed this 3D model of the layout of Heuermann's basement using the blueprints and footage from the Peacock documentary, "The Gilgo Beach Killer: House of Secrets." His former bedroom area later became a workshop/gun store. The gun vault on the left wasn't added until some point in the mid-to-late 2000s, possibly even later.

The Gilgo Beach task force began focusing on Heuermann after they determined that he may have been the last client to see Costello.

RH Consultants & Associates
At the time of his arrest, RH Consultants & Associates was situated at 385 5th Avenue in Manhattan.
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Sensing they were onto something, they started looking into his cell phone records.

At that point, they learned that he was using fictitious names to operate fake email accounts and burner cellphones. This behavior was strikingly similar to that of the killer, who had contacted the Gilgo Four victims using prepaid burner phones.

Activity on one of his fake Google accounts showed that he had been searching for images of the victims, images of the victims' relatives, information about the Gilgo investigation, and sadistic materials, among other disturbing content.

Google Street View
Heuermann is visible in this Google Street View image of the entrance to RH Consultants & Associates. The image was captured in June 2022. At the time, he was unaware that the Gilgo Beach task force had him under surveillance. On January 26th, 2023, a surveillance team observed him throwing a pizza box into the trash can outside his workplace (visible on the left). After retrieving the box, they sent leftover crust to the Suffolk County Crime Laboratory for analysis. A swab from the crust proved to be a mitochondrial DNA match with the male hair that was found on Megan Waterman.

When they dug into Heuermann's cell history, they determined that his personal phone and three of the killer's burner phones had visited the same locations at the same times. They also learned that his family had been out of town during at least three of the murders.

Heuermann's house in 2001
The photograph above was taken on January 29th, 2001.

The final piece of evidence came from hairs that were found on some of the bodies, as these proved to match the mitochondrial DNA profiles of both Heuermann and his wife.

It is believed that Ellerup's hairs transferred to the victims' bodies while they were inside their home and vehicle.

Drone footage
Drone footage of Heuermann's backyard being searched. Credit: "JLR© INVESTIGATES!" on YouTube.

Initially, he was only charged with three of the murders. He wasn't indicted for Brainard-Barnes' death until January 2024.

Six months later, on June 6th, 2024, he was charged with the murders of Jessica Taylor and Sandra Costilla. Then, in December 2024, he was also indicted for the 2000 murder of Valerie Mack.

Heuermann has pleaded not guilty to the crimes. He is currently awaiting trial.

Address

The address and GPS coordinates for the house are as follows:

Address

105 1st Avenue, Massapequa Park, New York, NY 11762, USA

GPS Coordinates

40.684372, -73.447432
40°41'03.74"N 73°26'50.76"W

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Area Information

Massapequa Park is situated in Nassau County on the South Shore of Long Island.

📍 The house is roughly 55 yards (50 meters) north of the intersection between Michigan Avenue and 1st Avenue.

Photos

Photos of the house and other related images.


2007

2007

This Google Street View image was taken in October 2007. At the time, the image quality of Street View was noticeably poor, as the technology had just been launched.

Visible are a Ford M151 military jeep (left), a Chevrolet Avalanche pickup truck (center), and a Ford SUV (right).

The garage door seems to have been replaced at some point between 2007 and 2011. The door in the 2007 image has overhead windows, while the one in the 2011 image does not.

Heuermann's house

Rex Heuermann's house

This photograph of Heuermann's house was taken two months after the police arrested him and raided his property.

Although the color has remained the same, the paint has faded. The porch doors are gone, and 2-by-4s are now holding up the roof.

Chevrolet Avalanche

Chevrolet Avalanche Heuermann

Image source: Google Maps

This Google Street View image of Heuermann's pickup truck was captured in November 2011.

The task force first became interested in the architect after they learned that he had previously owned a dark green first-generation Chevrolet Avalanche.

LISK's last known victim, Amber Lynn Costello, was visited by a very large man who drove a dark-colored pickup truck. During an interview with detectives, Costello's roommate recalled how the truck in question had a triangular brace between the cab and the bed.

Suffolk County District Attorney Raymond Tierney said the following during a press conference:

"In between the bed and the cab there's a little triangular, uh, ornament almost. And it's unique in the way it's configured. And it was unique to the Avalanche at the time. That was something that was pointed out by witnesses."

This shape provided investigators with a vital hint about the make and model of the vehicle.

After searching the vehicle database, they narrowed in on Heuermann, who drove a similar truck and fit the physical description of the suspect.

Public records indicate that he sold the Chevrolet to his brother, Craig Arnold Heuermann, in July 2014. His brother lives in Chester, South Carolina, which is out of the SCPD's jurisdiction. Consequently, the FBI had to perform the seizure.

A number of news websites have published photographs of the police seizing a black Chevrolet Avalanche from Heuermann's residence in Massapequa Park. However, this appears to be a newer vehicle that is unrelated to Costello's disappearance.

Arrest location

Heuermann Arrest

Heuermann was arrested on the evening of July 13th, 2023. At the time, he had just left work and was walking south on 5th Avenue in Midtown Manhattan.

Surveillance footage from a nearby store captured the moment when men in suits suddenly appeared and apprehended him.

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Heuermann was using burner phones

Burner phones Rex Heuermann

When the task force looked into Heuermann, they discovered that he was using multiple burner phones and fake email addresses. This was significant, as the Gilgo Beach killer (LISK) had used similar countersurveillance measures.

His emails included "[email protected]", "[email protected]", and "[email protected]".

On May 19th, 2023, surveillance cameras at a T-Mobile store at 124 West 34th Street in Manhattan captured footage of Heuermann adding additional minutes to one of his burner phones (images above).

After analyzing the usage of these devices, the task force noticed that he was using them to contact sex workers and arrange "hookups" on Tinder. Furthermore, he had also been using the phones to search for information about the Gilgo Case, its victims, and the victims' relatives (among other disturbing content).

The fact that he was still continuing to contact sex workers using burner phones worried investigators, as they believed that it was possible he might kill again.

Coordinates: 40.750072, -73.989105

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This location belongs to the following categories:

Serial KillersGilgo Beach Serial Killer Locations

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