What is the test for holding an accomplice responsible for a crime he intended to commit?

"[A] defendant may be held criminally responsible as an accomplice not only for the crime he or she intended to aid and abet (the target crime), but also for any other crime that is the 'natural and probable consequence' of the target crime." (People v. Prettyman (1996) 14 Cal.4th 248, 261.) A jury "must find that the defendant, acting with (1) knowledge of the unlawful purpose of the perpetrator; and (2) the intent or purpose of committing, encouraging, or facilitating the commission of a predicate or target offense; (3) by act or advice aided, promoted, encouraged or instigated the commission of the target crime[;] (4) the defendant's confederate committed an offense other than the target crime; and (5) the offense committed by the confederate was a natural and probable consequence of the target crime that the defendant aided and abetted." (Id. at p. 262, fn. omitted.)

A charged crime is a natural and probable consequence of a target crime if it was reasonably foreseeable that the charged crime would be committed. "The . . . question is not whether the aider and abettor actually foresaw the additional crime, but whether, judged objectively, it was reasonably foreseeable." (People v. Mendoza (1998) 18 Cal.4th 1114, 1133.)