Does the natural and probable consequences doctrine apply to conspirators and aiders and abettors?

The natural and probable consequences doctrine applies to conspirators and aiders and abettors. (People v. Prettyman (1996) 14 Cal.4th 248, 260-261.) It provides that

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"each member of a conspiracy is criminally responsible for the acts of fellow conspirators committed in furtherance of, and which follow as a natural and probable consequence of, the conspiracy, even though such acts were not intended by the conspirators as a part of their common unlawful design." (People v. Zielesch (2009) 179 Cal.App.4th 731, 739.) Whether an unplanned crime is a natural and probable consequence of a conspiracy to commit the intended crime does not depend on whether a conspirator " 'actually foresaw the additional crime, but whether, judged objectively, [the unplanned crime] was reasonably foreseeable.' [Citation.]" (Ibid.) An unplanned crime need not even have been a strong probability. (Ibid.) "Whether the unplanned act was a 'reasonably foreseeable consequence' of the conspiracy must be 'evaluated under all the factual circumstances of the individual case' and 'is a factual issue to be resolved by the jury' [citation], whose determination is conclusive if supported by substantial evidence [citations]." (Id. at pp. 739-740.)