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DA Says Forensic Genealogy Identifies Robert Carey in 1991 Brockton Murder and 1993 Rape

Forensic genealogy matched preserved DNA to Robert Carey through a relative's ancestry sample.

Overview

  • Prosecutors in Plymouth County, who named Carey Thursday, said DNA from sexual-assault kits in 1991 and 1993 tied both crimes to one perpetrator.
  • Investigators linked the two kits in 2016, then in 2025 genealogists built a family tree that led them to Carey as the statistical match.
  • A close relative’s DNA uploaded to an online ancestry website provided the key lead that let Othram’s lab confirm the match to the crime-scene profile.
  • At the time of the attacks, Carey lived at the Brockton Veterans Administration Medical Center about 1.5 miles from both scenes, and investigators say these are the only cases tied to him.
  • Carey died of natural causes in June 2025, so prosecutors cannot file charges, and the Bishop and Bell families said the identification offers long-sought answers.