Nevada prosecutors have filed multiple charges against 20 defendants over the incident, including first-degree murder and attempted murder.

Nevada prosecutors say 20 people in all have been charged in connection with a brawl at a maximum-security prison in Nevada last year in which three inmates were killed and others were injured.

Multiple people were killed in a huge brawl at a U.S. prison, resulting in at least 10 people being charged. A huge brawl broke out at a Nevada prison last year. Three inmates were killed in the fight,

A sixth inmate has died at a troubled maximum security prison in southern Wisconsin. The state Department of Corrections offender website notes that 23-year-old Damien Evans died Tuesday at Waupun Correctional Institution.