Newly-developed DNA technology has helped solve two Mississippi murders that were unsolvable for three decades. Investigators had few leads in the Labor Day murders of two elderly women in Starkville, Mississippi. But now

Michael DeVaughn, 51, is jailed on capital murder and sexual battery charges in connection with the 1990 murders of Betty Jones, 65, and Katherine Crigler, 81. Nancy Grace looks at the case with experts including Dr. Michelle Dupre, a South Carolina medical examiner and author of “Homicide Investigation Field Guide,” North Carolina family lawyer Kathleen Murphy, DNA expert and forensic scientist George Schiro, and Crime Stories contributing reporter Robyn Walensky.

How do you protect your children from predators? Join Nancy Grace and a team of world-class experts for the online course ‘Justice Nation: Crime Stops Here’.

DNA leads to arrest in 2001 cold case murder of University of Florida student

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[Feature Photo: Michael DeVaughn/Police Handout]