DNA confirms man who had passed polygraph test as suspected killer in 1979 cold case

DNA confirms man who had passed polygraph test as suspected killer in 1979 cold case

Forty-five years after 17-year-old Esther Gonzalez was murdered in California, authorities used advanced DNA technology and forensic genealogy to identify her killer, Lewis Randolph "Randy" Williamson, who had initially been a person of interest but was cleared in 1979 due to limitations in forensic science at that time. Williamson, who died in 2014, passed a polygraph test in 1979, but a post-mortem blood sample yielded a DNA match to semen found at the crime scene. This breakthrough provided the Gonzalez family with long-awaited closure, although their relief is tempered by Williamson's death. The case highlights the power of modern forensic techniques in solving decades-old cold cases.

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