Earlier this year, Russell Guerrero of Chandler, Arizona was arrested for the 1990 murder of Jack Upton in Fremont, California. No motive has yet been determined for this disturbing and vicious murder of a well-liked and dependable Safeway manager.
He had been stabbed twenty times and had also been beaten and choked. His car had been stolen and found three hundred miles south of Fremont,
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The DNA from the Upton case was processed and compared against existing genealogical DNA profiles which Parabon NanoLabs has access to and that search, along with other evidence, led to Guerrero as a potential suspect, police said.
Fremont Detective Mike Gebhardt said “the DNA blew us away” since Guerrero’s name had never come up before in the investigation, even with numerous interviews of people who knew Upton.
Police learned Guerrero was married and living in Tempe, Arizona. Fremont detectives went there, placed Guerrero under surveillance and were able to obtain a DNA sample from him for comparison. It was subsequently found to be a match from the blood found in the apartment and car, police said.
It ought to prove interesting to learn why this complete stranger murdered this apparently decent and responsible man for no reason.
The Cold and Missing Persons Case Archivist 