CALIPATRIA, Calif.—California Department of Corrections and Rehabilitation officials are investigating the fatal stabbing at Calipatria State Prison of a 46-year-old incarcerated gang member from Castaic who was sentenced to death for his role in the kidnap-murder of a Buena Park businessman.
At approximately 1:23 p.m. Thursday, prison staff observed Alberto Martinez being struck by another incarcerated man, Tyler A. Lua, and knocked to the ground where Lua continued to hit him. Lua stepped away and two other inmates, Jorge D. Negrete-Larios and Luis J. Beltran, began striking Martinez as he was on the ground, motionless, according to corrections authorities.
Corrections staff quickly stopped the incident using pepper spray and one baton strike, prison officials said….