LOS ANGELES—A state prison inmate serving a life sentence for brutally stabbing an elderly Monrovia, Calif., couple to death in 2003 has died, and prison officials suspect his cell mate—also a convicted murder—of killing him, authorities said on May 1.
At approximately 2:05 a.m. Saturday, officials at Kern Valley State Prison in Central California discovered Alfredo Valenzuela, 50, unresponsive in the cell he shared with 36-year-old Noe Herrera during a security check, according to the California Department of Corrections and Rehabilitation.