Gentlemen, I know exactly how the criminal system works (I am almost done with law school), if they tried to get X on an aiding and abbeting theory (accomplice), he could get the same sentence as the actual murderer. Cali might have a different statute regarding this, but most states do as I just said.
This will be a long process, but if what I read is true, I may be able to help. Please read my other thread.
Ta TownBacker