The man accused of a string of serial killings in Gilgo Beach on Long Island, was charged with a seventh murder on Tuesday.
According to a superseding indictment unsealed Tuesday, prosecutors charged the suspect, Rex Heuermann, in the November 2000 death of Valerie Mack, whose remains were found 24 years ago. Mack’s decapitated body in a wooded area of Manorville on Long Island on Nov. 19, 2000, with her remains bound with rope inside a black plastic bag which was wrapped with duct tape. Both of her hands had been severed from her body and one of her legs was cut off, according to a bail application that accompanied the new indictment. The rest of Mack’s remains were found more than a decade later, in April 2011, along Ocean Parkway near Gilgo Beach.
Heuermann, a New York architect, has been charged in the deaths of six other women, all suspected sex workers, whose remains were discovered in a remote spot along Ocean Parkway near Gilgo Beach and parts of eastern Long Island. Prosecutors said they linked Heuermann, 61, to Mack’s death in part through a mitochondrial DNA analysis of a female hair found on Mack’s body which matched the profiles of Heuermann’s wife and daughter. At the time of Mack’s murder, Heuermann’s daughter would have been between 3-4 years old. Heuermann was also linked to Mack’s death through evidence recovered on some of the 350 electronic devices they seized from him that include his “significant collection of violent, bondage and torture pornography” dating back to at least 1994.
Heuermann, 61, was charged with one count of second-degree murder in connection with Mack’s death; he appeared in court on Tuesday shackled in a suit and told the judge, “Your honor, I am not guilty of any of these charges.” In June, Heuermann entered not-guilty pleas in the deaths of Jessica Taylor and Sandra Costilla. In July 2023, he was charged in the deaths of Maureen Brainard-Barnes, Amber Lynn Costello, Melissa Barthelemy, and Megan Waterman.
Judge Timothy Mazzei continued to hold Heuermann without bail. Suffolk County District Attorney Ray Tierney said at a news conference Tuesday that Mack’s parents “are very grateful for the small bit of closure.”
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