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John Bittrolff inside Riverhead Criminal Court Thursday morning (Credit: James Carbone)

John Bittrolff inside Riverhead Criminal Court Thursday morning on July 31, 2014, where he was arraigned on an indictment charge in the killing of two women. Prosecutors from the office of District Attorney Thomas Spota described the investigation in court papers last week to get a court-ordered DNA sample from Bittrolff, charged with strangling and bludgeoning Rita Tangredi, 31, of East Patchogue in November 1993, and Colleen McNamee, 20, of Holbrook in January 1994.

Video recap: The John Bittrolff trial

John Bittrolff, 48, is charged with two counts of second-degree murder in the deaths of Rita Tangredi, 31, of East Patchogue, on Nov. 2, 1993, and Colleen McNamee, 20, of Holbrook, on Jan. 30, 1994.

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