CHICAGO - A former Cook County corrections officer has been sentenced to six years in prison.
Robert Buchanan was found guilty of criminal sexual assault against a 10-year-old girl in south suburban Harvey.
The case dates back to 1997. The 45-year old Buchanan served as a Cook County corrections officer at the time.
Police say DNA evidence linked Buchanan to the rape of the girl.
Prosecutors say the abuse happened over the course of seven months.