An inmate once sentenced to life in prison with the possibility of parole for an attempted murder of a peace officer in Los Angeles County, and who later was sentenced to life without parole for killing a corrections officer, is facing additional possible charges Tuesday for allegedly trying to kill another corrections officer.
The latest alleged attack by Jon Blaylock, 56, occurred at about 10:15 a.m. Monday in a cell block at California State Prison, Sacramento, which is in Folsom, California, officials said.
The officer sustained multiple puncture wounds, according to a news release from the California Department of Corrections and Rehabilitation.
“Staff responded immediately and used physical force to quickly quell the attack,” officials said.
The officer was treated at the scene and then taken to a hospital, where he was in good condition awaiting discharge, the CDCR reported.
“An improvised weapon was found at the scene,” according to the CDCR.
Blaylock has been placed in restricted housing pending investigation.
“The case will be referred to the Sacramento County District Attorney’s Office for possible felony prosecution,” according to a department statement.
The CDCR took custody of Blaylock from Los Angeles County on June 23, 2004, after he was sentenced to life with the possibility of parole for attempted first-degree murder of a peace officer/firefighter.
He was a so-called “third striker,” and his conviction included sentencing enhancements for discharge and use of a firearm and prior felony conviction of a serious offense.
“While incarcerated, on Nov. 4, 2014, he was sentenced by Los Angeles County to life with the possibility of parole for assault by an incarcerated person with a deadly weapon or force likely to cause great bodily injury as a third striker,” according to the CDCR. “On Aug. 16, 2023, he was sentenced by San Bernardino County to life without parole for second-degree murder of a peace officer, an in-prison offense, with an enhancement for personal use of a dangerous or deadly weapon.”
The victim in that case was Manuel Gonzalez, who was stabbed three times with a handmade weapon by Blaylock at the California Institution for Men in Chino in 2005.
Attorney Mark Peacock, who represented Gonzalez’s family in a wrongful death lawsuit against the CDCR, spoke out on Tuesday about the inmate’s violent history.
“Over 20 years ago, my client Manny was murdered by this violent criminal because he wasn’t properly protected by the state,” he wrote. “And now, in 2026, this same violent offender is committing these same crimes. Part of a corrections officer’s job is risky, they understand that, but when the state fails to provide protection it turns that risk into a bullseye. It’s shocking, disturbing and disappointing that the Department of Corrections hasn’t learned its lesson in the last two decades, and I fear for the safety and lives of those who are putting themselves in harm’s way today.”