Whether conspiracy to commit murder requires proof that the conspirators intended to kill, rather than merely intended a life-endangering act with conscious disregard for life.
Holding
Yes. Conspiracy to commit murder requires an intent to kill—express malice—and cannot rest on implied malice.
Reasoning
Conspiracy is a specific-intent, inchoate offense. The prosecution must prove both an intent to agree and an intent to commit the elements of the target crime. Thus, where murder is the target, the conspirators must specifically intend the mental state required for the planned murder.
An intent unlawfully to kill is the functional equivalent of express malice. A conspiracy formed with an agreement and intent to kill therefore presents no conflict with the rule that conspiracy requires specific intent.
Implied-malice murder is different. It does not require an intent to kill; malice is inferred when a defendant deliberately commits an act dangerous to life with conscious disregard for life and a death results. The actual killing is therefore essential to the inference of malice in an implied-malice case.
That structure is incompatible with conspiracy. Conspiracy is complete at the agreement, plus an overt act, before the target offense is completed. Persons cannot logically conspire to commit a form of murder whose defining malice element is inferred only after a death has occurred.
The Court’s conclusion accords with California decisions holding that attempted murder, assault with intent to murder, and solicitation to murder all require an intent to kill and cannot be based on implied malice. The Court rejected the Court of Appeal’s reliance on People v. Alexander and explained that People v. Horn did not hold that an implied-malice theory could support a murder-conspiracy conviction.