NATCHEZ — Nine inmates pleaded guilty Tuesday in connection to a 2012 prison riot at the Adams County Correctional Center that left one correctional officer dead.

Gerson Benavides, 30; Joel Oswaldo Ramirez-Nunez, 33; Humberto Cuellar, 41; Hiasom Ali, 36; Raybel Granillo, 29; Margarito Munoz-Astello, 37; Ricardo Quintana, 27; Ruben Coronado-Licon, 22; and Bertil James, 38, each pleaded guilty before Senior U.S. District Judge David C. Bramlette III Tuesday to one count of rioting in a federal correctional facility.

Each defendant faces a maximum prison sentence of 10 years, a fine of $250,000 and a supervised release term of 3 years.

The defendants will be sentenced on May 29 and June 12.

During the riot on May 20, 2012, one guard — 24-year-old Catlin Carithers — was killed after inmates climbed to the roof where Carithers was deploying crowd-control gas and bludgeoned him with a blunt object.

Other guards were injured and taken hostage during the riot, as well as a number of inmates, and the prison sustained an estimated $1.3 million worth of damage.

Prison officials later said approximately 700 of the nearly 2,500 inmates housed at ACCC participated in the nearly seven hours of violence and looting.

ACCC is a federal immigration prison privately operated by Corrections Corporation of America.