A San Quentin State Prison inmate from Los Angeles County killed a fellow inmate incarcerated as a sex offender who died Wednesday in the facility, authorities said.
Los Angeles inmate Sammeon Waller, 28, is a burglar who injured a dependent adult causing death. He killed John Sullivan, 66, according to the California Department of Corrections and Rehabilitation.
Sullivan was found unresponsive in his cell at 12:42 a.m. by a correctional officer who was conducting an “institution population count,” a CDCR statement said.
“Life-saving measures were unsuccessful and Sullivan was pronounced deceased at 1:18 a.m. by outside medical personnel,” the statement said.
Sullivan was admitted to the prison from Placer County on March 3, 2016, to serve a 10-year sentence for failure to register as a sex offender, a second-strike offense.
Waller was admitted to the prison from Los Angeles County on Dec. 20, 2017, to serve seven years for first-degree burglary and injury to a dependent adult causing death/great bodily injury.
Waller has been rehoused in the Administrative Segregation Unit.
San Quentin State Prison, in Marin County, houses more than 2,500 inmates.
No other details were immediately revealed, such as the manner of the killing and possible motive.
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