Who Was the Gilgo Beach Serial Killer's Alleged Seventh Victim, Valerie Mack?

Mar. 15, 2025

Valerie Mack.Photo:Suffolk County Police Department via AP

Suffolk County Police Department via AP

On the morning of Nov. 19, 2000, three hunters in the woods in Manorville, N.Y. came across a black plastic bag wrapped in duct tape.

Inside the bag were the partial remains of a woman. Both of her hands were severed from her body and her right leg had been cut off at mid-calf. Her torso, leg and arms were bound with rope.

More than a decade later, on April 4, 2011, Long Island authorities searching for remains along Ocean Parkway as part of an investigation into the murders of online escortsMelissa Barthelemy,Amber Costello, Maureen Brainard- Barnes andMegan Waterman, found the skull and right foot of the same woman.

She was later identified as 24-year-old Valerie Mack.

On Tuesday, Dec. 17, Mack became the seventh victim linked to suspected Gilgo Beach serial killer Rex Heuermann when Suffolk County District Attorney Ray Tierneycharged the former architect with her murder.

Heuermann has also been charged in the killings of Barthelemy, Costello, Brainard-Barnes,and Waterman, who were found along Gilgo Beach. He is also charged with the murders of Sandra Costilla and Jessica Taylor, whose remains were discovered elsewhere on Long Island.

Rex Heuermann.James Carbone/Newsday via AP

James Carbone/Newsday via AP

Maureen Brainard-Barnes; Melissa Barthelemy; Megan Waterman; Amber Lynn Costello.Suffolk County Police Department; Barthelemy family; Suffolk County Police Department (2)

Suffolk County Police Department; Barthelemy family; Suffolk County Police Department (2)

Sandra Costilla; Jessica Taylor.Suffolk County Police Department

Suffolk County Police Department

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According to the indictment, a hair from Heuermann’s daughter Victoria was also found in the sealed garbage bag where Mack’s remains were found. Victoria would have been three or four at the time of the killing.

source: people.com