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DNA Links Long-Deceased Suspect to 1966 San Rafael Murder, Police Say

Genetic genealogy tied DNA from scene cigarettes to Laurel James Switzer through relatives’ consented samples.

Overview

  • San Rafael police announced Tuesday that DNA matched Laurel James Switzer to cigarettes found at the 1966 murder scene.
  • Cigarette butts were collected in 1966, but the case stalled because DNA testing did not exist at the time.
  • In 2025, two retired San Rafael detectives and the Sacramento County district attorney sent the evidence to Othram, which extracted DNA and built a full profile using genome sequencing.
  • Othram’s family-search leads led investigators to Switzer’s surviving relatives, whose voluntary DNA samples produced a positive match, though his suicide days after the killing leaves motive and details unresolved.
  • A grant from the nonprofit Season of Justice funded the testing, showing how private funding and labs now help police revive and resolve long-cold cases.