DNA techniques
Judge overturns convictions of 3 Pennsylvania men imprisoned for decades in slaying of 70-year-old woman
Three Pennsylvania men imprisoned for decades in the 1997 killing of a 70-year-old woman, despite DNA evidence not matching, have had their convictions overturned by a Delaware County judge. Derrick Chappell, and first cousins Morton Johnson, and Sam Grasty were convicted separately for the murder of Henrietta Nickens at her home in Chester, Pennsylvania on…