Betty Jo Grunzweig, a 37-year-old woman, was tragically murdered on December 4, 1981, in her home located in Oakland's Trestle Glen neighborhood. She was found stabbed to death, and forensic evidence later revealed a crucial clue—skin from the perpetrator was discovered under her fingernails. This evidence played a significant role in identifying her killer.
The investigation into Grunzweig's murder eventually linked her death to Charles Jackson, a serial killer known as 'The East Bay S
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