SAN QUENTIN, Calif. (AP) — The California corrections department says a death row inmate has died after being found unresponsive in his San Quentin prison cell.
Guards discovered 55-year-old Gilbert R. Rubio in his one-man cell Thursday around 6 a.m. His cause of death has not been determined.
Rubio was sentenced to death by a Los Angeles County jury in 2000 for first-degree murder in the home-invasion robbery of George Blackwell at his home in Long Beach.
Two others were convicted in connection with the 1998 killing. Both are serving life sentences without parole.
Since 1978, 15 California death row inmates have been executed. Seventy died of natural causes, 25 committed suicide and eight died from other causes. The Department of Corrections says there are now 747 people on California’s death row.