MT. VERNON – Illinois State Police (ISP) Division of Criminal Investigation (DCI) are investigating an in-custody death of an inmate at the Jefferson County Jail at the request of the Jefferson County Sheriff’s Office. 

According to ISP, during the early morning hours Sunday, Jefferson County correctional officers located 31-year-old Cady Moore of Mt. Vernon unresponsive in her jail cell.

Jail personnel activated EMS and performed CPR. Moore was transported by ambulance to an area hospital where she was pronounced dead. An autopsy is pending and the Jefferson County Coroner’s Office is assisting in the investigation.

The investigation is on-going and no additional information is being released at this time.