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Chicago Sun-Times
Chicago Sun-Times
National
Jon Seidel

How a Cook County sheriff’s detective apparently solved the nearly 100-year-old mystery of a missing Chicago girl

Jose Rodriguez Jason Moran Tom Dart Chicago Cook County Florida SunTimes
Detective Jose Rodriguez, with the Cook County Sheriff’s office, explains how familial DNA sequencing works Tuesday. (Tyler Pasciak LaRiviere/Sun-Time)

The disappearance of Mary Agnes Moroney has gone unsolved for nearly 100 years.

But answers to this Chicago mystery seemed to reveal themselves only months after a Cook County detective began looking into her case last year, this time with the help of commercial DNA tests.

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