Gilgo Beach serial killer suspect studied ‘Mindhunter’ book like ‘homework’, typed planning notes on Microsoft Word, and murdered woman as far back as 1993: Docs



Prosecutors in the Suffolk County, New York, confirmed Thursday that the suspected Gilgo Beach serial killer has been formally accused of two more murders, but the bail application to make extra certain that Rex Heuermann remains behind bars also provided details that are chilling in their implications.

Heuermann, now 60, was infamously arrested last summer on the strength of discarded pizza crust and DNA evidence that allegedly linked him to male hairs found on the victims, of whom there are now six.

The Manhattan architect, already accused of murdering Melissa Barthelemy, 24, Megan Waterman, 22, Amber Costello, 27, and Maureen Brainard-Barnes, 25, in the late 2000s and 2010 on Long Island, has since been indicted in the 2003 slaying of Jessica Taylor, 20, and the 1993 murder of Sandra Costilla, 28.

(L-R): Maureen Brainard-Barnes, Melissa Barthelemy, Megan Waterman, Amber Lynn Costello, the women known as the "Gilgo Four" whose bodies were found on a remote Long Island beach in December 2021. They were last seen on dates between 2007 and 2010 and are believed to be the same victims of a serial killer.

(L-R): Maureen Brainard-Barnes, Melissa Barthelemy, Megan Waterman, Amber Lynn Costello, the women known as the “Gilgo Four” whose bodies were found on a remote Long Island beach in December 2021. They were last seen on dates between 2007 and 2010 and are believed to be the same victims of a serial killer. (Pictures via the Suffolk County (New York) Police Department.)

Simply put, the link between Heuermann and a murder from the early 1990s, when he would have been around 30 years old, raises the distinct possibility that, if he really is who prosecutors say he is, there’s no telling how far back the serial killings largely targeting sex workers may go or how many victims there might be.

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