How did he EVER get the possibility of parole??? He was sentenced to death, then California decided to drop the death penalty, but why wasn't that changed to life with no possible parole? How can that even be a consideration after what he was responsible for? Dear Lord, what that group did to the pregnant Sharon Tate alone qualifies for never being allowed out into society again.
"[A]ny prisoner now under a sentence of death ... may file a petition for writ of habeas corpus in the superior court inviting that court to modify its judgment to provide for the appropriate alternative punishment of life imprisonment or life imprisonment without possibility of parole specified by statute for the crime for which he was sentenced to death." 1972 - California v. Anderson
Doesn't matter - Chuck's not going anywhere and he knows it. He didn't even show up for his 2007 hearing.