Does Section 1111 of the California Criminal Code apply to determine whether a witness is an accomplice?

We disagree. "Whether a person is an accomplice within the meaning of section 1111 presents a factual question for the jury `unless the evidence permits only a single inference.' [Citation.] Thus, a court can decide as a matter of law whether a witness is or is not an accomplice only when the facts regarding the witness's criminal culpability are `clear and undisputed.'" (People v. Williams, supra, 16 Cal.4th at p. 679, 66 Cal.Rptr.2d 573, 941 P.2d 752.)