The Jefferson County Sheriff’s Office has identified the man who died in jail custody as Howard Fletcher, 70.

An autopsy was completed and final results are pending toxicology.

Around 6:30 a.m. Sunday, an inmate in the medical infirmary of the Jefferson County Correctional Facility reported that his bunk mate, a 70-year-old white male, was unresponsive.

Jail staff immediately began CPR and notified EMS. They continued CPR until the EMS arrived and took over. The inmate was transported to a local hospital where he was pronounced deceased, according to a press release from the Jefferson County Sheriff’s Office.

He was currently in custody on the charge of fail to register as a sex offender.