Did the Ninth Circuit improperly disregard and/or overlook United State Supreme Court and Ninth Circuit precedent that required it to defer to California state law to define each element of the offense, specifically in this case what kind of evidence California law requires to prove premeditation and deliberation?

QUESTION PRESENTED Did the Ninth Circuit improperly disregard and/or overlook United State Supreme Court and Ninth Circuit precedent that required it to defer to California state law to define each element of the offense, specifically in this case what kind of evidence California law requires to prove premeditation and deliberation?