By Amy Cherry 3:56pm, January 16, 2014A registered sex offender will return to prison on child pornography charges.
64-year-old William Zimmerman of Georgetown has admitted to receiving child porn.
Zimmerman spent four years behind bars in the nineties on charges of unlawful sexual conduct and child porn possession.
Because of his prior convictions, he faces a minimum of 15 years behind bars on these new charges. He'll be sentenced in April.
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