Forensic Factor: A New Era

The Cops, The Fugitive, The Nurse, And Her Lover (1x4)

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When Lanell Barsock is found murdered, it seems obvious to all that her boyfriend did it; when the forensic evidence comes in, investigators are astonished to learn they've arrested the wrong person; if Lanell's boyfriend is innocent, who's the killer and why does the only witness, and Lanell's best friend, have bullets in her purse?