Victim

Amber Lynn Costello

1 case·8 media appearances

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About

Amber Lynn Costello was a 27-year-old from North Babylon, New York who disappeared in September 2010 and whose remains were found along Ocean Parkway, Babylon in December 2010 as part of the Gilgo Four discovery. She had worked as an escort and advertised her services online. Friends reported she had gone to meet a client named 'Mike' and never returned. Rex Heuermann was charged with her murder in January 2024.

Connected case

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Gilgo Beach Serial Killings

The Gilgo Beach serial killings involved the murders of at least eight women whose remains were discovered along Ocean Parkway on Long Island, New York, beginning in December 2010. Rex Heuermann, a 59-year-old Manhattan architect, was arrested on July 13, 2023, after DNA from discarded pizza crust linked him to evidence found with the victims. On April 8, 2026, Heuermann pleaded guilty to seven murders and admitted to an eighth, with sentencing scheduled for June 17, 2026.