Whether the trial court was required to instruct on voluntary manslaughter for Scott’s killing based on the heat of passion allegedly provoked by Peggy.
Holding
No. A voluntary-manslaughter instruction based on provocation was not warranted because Scott was not the source of the provocation, and the evidence did not show that Spurlin killed Scott in a heat of passion directed at him.
Reasoning
Voluntary manslaughter is an unlawful killing without malice that occurs upon a sudden quarrel or in the heat of passion. The central question is whether adequate provocation so disturbed the defendant’s reason that an ordinarily disposed person might act rashly and without reflection. Although California’s modern doctrine allows the jury to assess adequate provocation from the particular facts, the defendant must affirmatively produce evidence supporting that theory.
The court concluded that statutory voluntary manslaughter retains a common-law limitation: ordinarily, the person killed must have supplied the provocation. Authorities from other jurisdictions applying the common-law rule supported that conclusion, subject to limited exceptions such as accidental killing of the wrong person or a victim who aided the provoking party.
Peggy’s reaction to Spurlin’s disclosure could be viewed as igniting his long-standing resentment over her sexual conduct, making a manslaughter instruction appropriate as to her death. Scott, by contrast, had slept through the evening and did nothing to provoke Spurlin. Spurlin’s own account was that he killed Scott as part of a decision to eliminate the family, not because Scott aroused rage, anger, or passion.