Killer Or Cover-Up Murder Trial

A forensic scientist working for the Massachusetts state crime lab took the stand. During the murder investigation into the death of John O'Keefe, analysts from the State and a private lab examined crime scene evidence looking for his DNA. A key detail in the prosecution's case against Karen Read was where the DNA of John O'Keefe was found at the crime scene. These analysts who took the stand referenced their laboratory test results during their elaborate testimony.

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