Cal. Penal Code § 190.2
(a) The penalty for a defendant who is found guilty of murder in the first degree is death or imprisonment in the state prison for life without the possibility of parole if one or more of the following special circumstances has been found under Section 190.4 to be true:
(17) The murder was committed while the defendant was engaged in, or was an accomplice in, the commission of, attempted commission of, or the immediate flight after committing, or attempting to commit, the following felonies:
(d) Notwithstanding subdivision (c), every person, not the actual killer, who, with reckless indifference to human life and as a major participant, aids, abets, counsels, commands, induces, solicits, requests, or assists in the commission of a felony enumerated in paragraph (17) of subdivision (a) which results in the death of some person or persons, and who is found guilty of murder in the first degree therefor, shall be punished by death or imprisonment in the state prison for life without the possibility of parole if a special circumstance enumerated in paragraph (17) of subdivision (a) has been found to be true under Section 190.4.
The penalty shall be determined as provided in this section and Sections 190.1, 190.3, 190.4, and 190.5.