RIVERHEAD, New York — Accused Gilgo Beach serial killer Rex Heuermann is being charged with a seventh murder: the November 2000 death of Valerie Mack, law enforcement sources told ABC News.
The latest charges include one count of of second degree murder, according to a superseding indictment unsealed Tuesday.
A hunter’s dog discovered some of Mack’s remains in a wooded area of Manorville on November 19, 2000. The remains were in a black plastic bag wrapped with duct tape. The bag contained additional plastic bags that contained Mack’s decapitated body.
“Moreover, both of her hands had been severed from her body, above the wrists, and the victim’s right leg had also been cut off from her body at the mid calf,” according to a bail application that accompanied the new indictment. “Ms. Mack’s torso, legs and arms were also bound with rope.”
The rest of her remains were found more than a decade later, in April 2011, along Ocean Parkway near Gilgo Beach.
The New Jersey woman was identified through DNA. Like the other victims, prosecutors have said she was also involved in sex work.
Mack’s parents were expected in court as Heuermann was arraigned on a new murder charge.
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Prosecutors named Heuermann, 61, a suspect in Mack’s death in June based on evidence allegedly found on an electronic device seized from Heuermann’s home in Massapequa Park on Long Island.
Prosecutors have said Heuermann kept detailed notes about serial killings, body disposal and torture pornography, dating back to at least 1994.
Investigators said they found one document that they believe Heumerann used to “plan out” his kills. The document was created in 2000, the year Mack was killed. Under a section entitled “supplies,” Heuermann allegedly listed “rope/cord,” “saw/cutting tools,” “foam drain cleaner.” Under a section labeled “DS,” believed to stand for “dump site,” Heuermann allegedly listed one of the locations were Mack’s remains were found.
The document also included a “body prep” section with a note to “remove head and hands,” according to the bail application. That relates to the condition of Mack’s remains, prosecutors said.
The architect and father has pleaded not guilty to charges stemming from the murders of six women whose remains were found in a remote spot along Ocean Parkway near Gilgo Beach and parts of eastern Long Island.
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