SACRAMENTO — 1970 · Murder

The Nancy Bennallack case

SolvedSources: CLast updated: 14 October 2026

In October 1970, in Sacramento, 28-year-old court stenographer Nancy Marie Bennallack was stabbed to death in her apartment. She had been planning to marry about a month later. The case remained unsolved for 52 years; her family and fiancé never received an answer. In August 2022, a review of biological samples preserved from the crime scene using forensic genetic genealogy identified the perpetrator. The suspect was no longer alive by the time his identity was disclosed.

Date
1970
Place
California, USA, Sacramento, US
Category
Murder
Case Status
Solved
Coordinates
38.5816, -121.4944 ↗

Timeline of Events

  1. 1970The killing took place (October)
  2. 1970-2021The case remained unsolved
  3. 2022Forensic genetic genealogy identified the perpetrator (August)

Sources

  • Official Report
  • Forensic Medicine Report

Source grade C: no linked source yet; details rely on the general press archive. If you spot a mistake or something missing, report it with "Suggest a correction" in the app.

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🕯️ This record was prepared with respect, in memory of those who lost their lives.