A 2011 psychological profile of the Gilgo Beach serial killer, created by criminologists, has proven remarkably accurate following the arrest of Rex Heuermann. The profile, published in the New York Times, described the likely perpetrator as an educated white male, financially stable, residing on Long Island's South Shore, potentially married, and outwardly appearing ordinary.

Rex Heuermann being escorted into court. (Matt Agudo/Splash for Fox News Digital)

These characteristics align strikingly with Heuermann, a married architect and father of two from Massapequa Park. While the profile suggested the suspect would be in his mid-20s to mid-40s, Heuermann, at 59, was slightly older than predicted when the last known victim, Amber Costello, was killed in 2010. However, he would have been within the predicted age range during the earlier murders.

Rex Heuermann (Jeffrey Simon Architecture & Design)

The profile also highlighted the killer's familiarity with the remote area where the bodies were discovered, speculating about a potential seasonal connection, perhaps linked to periods when family members were away. Investigators have since confirmed that the murders coincided with times when Heuermann's wife and children were out of town. His wife was reportedly in Maryland, New Jersey, and Iceland during the disappearances of Megan Waterman, Amber Costello, and Melissa Barthelemy, respectively.

Investigators at Heuermann’s Manhattan office. (Julia Bonavita/Fox News Digital)

Heuermann has pleaded not guilty to six counts of murder. Authorities have searched his home and Manhattan office, and neighbors have expressed shock and described him as unsettling. Investigators have revealed that Heuermann conducted thousands of online searches related to explicit content, sex workers, and allegedly child pornography. Mitochondrial DNA technology, allowing for further analysis of hairs found on the victims, played a key role in the arrest, along with cell phone data and DNA retrieved from a discarded pizza box.