Lois Petrie, a 43-year-old widow from San Pedro, Los Angeles, was last seen alive at a local bar on Christmas Day in 1972. The following day, her partially nude body was discovered in her bedroom. An autopsy revealed that she had been sexually assaulted and strangled, with the latter being the cause of death.
At the time, investigators struggled to find leads due to the lack of evidence left behind by the perpetrator. The case remained unsolved for decades until advancements in forensic
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