Authorities are investigating how a Charleston County jail inmate ended up dead.

The Charleston County Coroner's Office identified him as Mathew Lee Glidden, 29, of Ladson. A cause of death has not been determined.

The inmate had been jailed on charges of criminal sexual conduct with a minor and two counts of lewd act on a child, according to the Charleston County Sheriff's Office.

A detention officer found the inmate dead in his bed at 6:45 a.m., according to investigators. Officers were preparing the inmates in the unit for breakfast when the man's body was discovered.

The State Law Enforcement Division is investigating the death.

Dave Munday contributed to this story. Reach Natalie Caula Hauff at 937-5594 or Twitter.com/ncaula.