Inmate Demetrius Stewart, 52, found dead in Madison County jail; suspected heart attack.

An inmate, 52-year-old Demetrius Lemonte Stewart, was found unresponsive and later pronounced dead at the Madison County Detention Facility after being booked for a probation violation. He was last seen during a morning count and found unresponsive during meal service. Authorities believe he suffered a heart attack. The Madison County Sheriff's Office is investigating, with no signs of foul play. An autopsy is pending to confirm the cause of death.