Watch: Police give latest details on homicide investigation of Illinois teen

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SPRING VALLEY, Illinois -- Authorities held a press conference Monday afternoon, January 29th to talk about the investigation into the body that was found and identified as a missing teenage girl.

Putnam County Sheriff Kevin Doyle confirmed that the body of 16-year-old Diamond Bradley was found Saturday, January 27th just before 1 p.m. in a ditch off a county highway in Granville Township, located in Putnam County.

Related: Brother of Illinois girl found dead in a ditch demands justice

Days earlier, on Wednesday, January 24th, her family had reported her missing.  Sheriff Doyle said an investigation into her whereabouts was launched at that time.  He said it is believed she was last seen at her home in the early morning hours Wednesday.

An autopsy Sunday confirmed that the Spring Valley teen died as a result of homicide.  Sheriff Doyle said investigators believe the incident was isolated to this one victim.

Once the press conference was opened for questions, someone asked whether Spring Valley had ever seen anything similar to this case.  An officer standing before the group said that in his 29-year career in Spring Valley two other children have been murdered.

Authorities are seeking any additional information that would help them with their investigation.