Suffolk County District Attorney Ray Tierney announced the identities of six previously unidentified cold case victims, giving names back to individuals whose remains were discovered over several decades.
The cases date from 1976 to 1999. Three of the six individuals were homicide victims, and authorities say identifying them marks a significant step forward in the investigations.
“For decades, these cases were hampered by a fundamental question," Tierney said. "We did not know who these individuals were. All homicide investigations start with the victim, start with the individual's identity and we work out from there.
Investigators used advanced DNA technology to identify three of the victims, including next-generation sequencing and investigative genetic genealogy. The techniques allow authorities to compare DNA evidence with genetic information from relatives to establish a positive identification.
The same investigative methods have played a key role in the Gilgo Beach homicide investigation, helping identify victims Valerie Mack and Karen Vergata. Genetic genealogy also helped investigators develop leads that ultimately pointed authorities to accused Gilgo Beach serial killer Rex Heuermann.
Tierney recently testified in Albany in support of the use of these emerging investigative techniques.
“These cases today highlight the importance of leveraging next-generation sequencing and investigative genetic genealogy,” Tierney said.
No criminal charges were filed in any of the six cold cases.