Cold Case Files Cold Case Files

REOPEN: DNA SPEAKS: Justice for Mary

Oct 1, 2026 · 35m

Summary

This episode recounts the 1969 murder of San Diego go-go dancer Mary Scott, whose case went cold for over five decades. After initial suspects were eliminated by DNA testing, investigators utilized forensic genealogy in 2020 to identify John Sippos, a former sailor who lived near the crime scene. The narrative features interviews with Mary’s family, including her sister Rosalie and daughter Donna, who pursued justice after years of silence. Sippos was eventually arrested, convicted of murder, and sentenced to prison, bringing closure to the family after 53 years.

Topics discussed

Introduction and Tom Giacinto's account of the last ride Discovery of the body and initial crime scene analysis Family interviews: Mary's sister and childhood memories Mary's relationship with Patrick and move to Louisiana Investigation of Tom Krause and the apartment break-in Family reaction and media portrayal of Mary as a dancer Cab driver testimony and suspicion of Keith Christopherson Case goes cold and Lauren Mooy's revelation Daughters discover truth and Christine's death Donna visits California and revisits crime locations 1999 DNA review eliminates primary suspects 2020 forensic genealogy breakthrough and new lead Identification of John Sippos and connection to San Diego DNA confirmation via trash run and arrest of Sippos Trial, guilty verdict, and sentencing Family reflections and remembering Mary
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