Hillsboro, MO (KSDK) -- The death of a 24-year-old Jefferson County Jail inmate is under investigation.
The Jefferson County Sheriff's Office said Bradley Kingery was found unresponsive in his cell and later died.
Cell mates notified corrections officers that Kingery was unconscious and unresponsive around 3:30 a.m. Monday.
Officers located Kingery and initiated life saving treatment at the facility.
Preliminary indications suggest the inmate's death is not being classified as 'suspicious', but Jefferson County authorities will wait until they receive the final reports to make that determination.
Kingery was being held on traffic related warrants out of St. Louis City. He was arrested at 1:30 a.m. on June 3.