NATCHEZ — The inmate who was set for trial Monday for his alleged part in the May 2012 prison riot in Adams County that killed a guard is now expected to change his initial “not guilty” plea next month.

Ernesto Lizama-Reynaga was originally set for trial Monday, but last week the plans for the trial were scrapped and a change of plea hearing was scheduled.

Lizama-Reynaga’s initial plea was entered in April.

Lizama-Reynaga’s attorneys had previously sought a delay to the trial in order to better prepare, but U.S. District Judge David Bramlette denied that request in July.

According to previous court filings, Lizama-Reynaga was seen carrying weapons and hitting the windows of the Adams County Correctional Center’s central command area during the riot.

Court filings also indicated the suspect was one of the inmates who participated in the looting of the prison’s kitchen and commissary.

Though more than a dozen inmates have been indicted in relation to the riot, none of those who have been charged have yet been to trial. Several have initially pleaded “not guilty” only to later change their pleas.

The correctional officer killed in the riot — 24-year-old Catlin Carithers — died of injuries received after inmates apparently bludgeoned him on the roof of one of the prison’s buildings as he and another officer were deploying gas canisters in an attempt to control the insurrection, which lasted nine hours.

ACCC is a minimum-security federal immigration prison that is privately operated by Corrections Corporation of America. Approximately 2,500 inmates are housed at the facility.