John Bittrolff charged with cold-case murders of Rita Tangredi, Colleen McNamee

John Bittrolff, 48, of Manorville, was arrested on

John Bittrolff, 48, of Manorville, was arrested on Monday, July 21, 2014, and faces charges of second-degree murder in connection with the beating and strangulation deaths of two women more than 20 years ago, police said. (Credit: SCPD)

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Manorville carpenter John Bittrolff, 48, has been charged with killing two women almost 20 years ago, leaving their nude bodies "uniquely positioned," and he is also being investigated in a third cold case of a woman found posed in a similar way, Suffolk authorities said. The "miracle of modern DNA science" led to Bittrolff after DNA from his brother Timothy was compared to evidence collected years ago from the homicide scenes. Crime lab technicians concluded the killer had the same parents as Timothy Bittrolff, Suffolk DA Thomas Spota said.

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