Death row inmate killed in California prison as guards deploy blast grenades to control violent mob attack

California Department of Corrections and Rehabilitation CDCR authorities are scrutinizing after a death row inmate was killed at Kern Valley State Prison in Delano on Friday Convicted murderer Mario Renteria allegedly started beating fellow inmate Julian Mendez at about a m Friday prompting prison staff to respond Officers ordered them to get down but the men failed to comply according to a CDCR news release obtained by Fox News Digital Chemical agents initially stopped the attack but more than additional inmates rushed Renteria and began striking him ESCAPED CALIFORNIA INMATE WHO KILLED LEADER OF ELITE MEXICAN POLICE UNIT WHILE ON THE RUN HAS BEEN ARRESTEDOrders to stop were ignored and staff used multiple blast grenades to quell the violence according to CDCR Mendez suffered multiple wounds and life-saving measures were straightaway taken He was taken to the prison's triage and remedy area where a medical expert pronounced him dead at a m ARIZONA PRISONER SERVING LIFE SENTENCES ACCUSED OF KILLING THREE FELLOW INMATESOfficials announced an improvised weapon was discovered at the scene though the type of weapon was unclear Renteria remains in restricted housing pending scrutiny according to CDCR Executives limited population movement to facilitate the assessment by the prison's Investigative Services Unit and the Kern County District Attorney s Office The Office of the Inspector General was notified and the Kern County Coroner will determine Mendez s official cause of death DA TO SEEK DEATH PENALTY AGAINST ILLEGAL IMMIGRANTS ACCUSED IN NUNGARAY MURDER CASEMendez was received from Riverside County on Dec according to CDCR He received a condemned sentence in for the first-degree murder of two teenagers CDCR reported Renteria was received from Riverside County on April and was sentenced to life with the possibility of parole for first-degree murder a third-strike offense and arson CLICK HERE TO GET THE FOX NEWS APPKern Valley State Prison opened in and houses over minimum- and high-security-custody inmates