Error and/or relief
The trial court gave an erroneous instruction on involuntary manslaughter requiring reversal. Based on the findings of the jury that the defendant was not guilty under any valid theory, we do not order retrial on the involuntary manslaughter.
First Holding:
(Gary note: I provide the following as context for the results in this opinion. These summaries are intended and designed to highlight principles of law, not so much the specific factual situation in which the error occurred. In this jury instruction error case, though, a little more factual specificity may aid the reader in understanding the more universal principles.
(In this case, the judge modified the standard instruction on involuntary manslaughter in such a way that the jury first had to find that the defendant acted in complete self-defense, and then had to determine whether he did so in a negligent matter. But that is not the law. Complete self-defense ends the question. Had the defendant acted in any way that was NOT complete self-defense, then he would not have been acting lawfully. And the jury necessarily found that he acted in complete self-defense, so it was misled by the instruction that allowed the jury to find him guilty of involuntary manslaughter.
(The opinion summarizes the context: “Here, the jury found defendant not guilty of first degree and second degree murder based on the finding that defendant acted in lawful self-defense in shooting defendant. It further found defendant not guilty of voluntary manslaughter rejecting that unreasonable self-defense was applicable. It found defendant guilty of involuntary manslaughter, finding, as recognized by the trial court, that defendant, ‘in a lawful act of self-defense, was criminally negligent in how he did it, and in his criminally negligent manner resulting in an involuntary manslaughter.’ As we have concluded, such determination was not a valid theory of involuntary manslaughter. There was no other theory of involuntary manslaughter presented to the jury. Here, the only question for the jury was whether defendant acted in reasonable self-defense in shooting [the victim] one time in the face. Once it concluded that such use of force was reasonable, it found lawful self-defense, which was a complete defense to involuntary manslaughter. The jury necessarily relied on the erroneous instruction to convict defendant of involuntary manslaughter after finding the complete defense of justifiable homicide. The error was prejudicial.”)
It is settled that in criminal cases, even in the absence of a request, a trial court must instruct on general principles of law relevant to the issues raised by the evidence and necessary for the jury’s understanding of the case. It is also well settled that this duty to instruct extends to defenses if it appears … the defendant is relying on such a defense, or if there is substantial evidence supportive of such a defense and the defense is not inconsistent with the defendant’s theory of the case.
Authority:
People v. Brooks (2017) 3 Cal.5th 1, 73
Second Holding:
In reviewing a claim that the court’s instructions were incorrect or misleading, we inquire whether there is a reasonable likelihood the jury understood the instructions as asserted by the defendant. We consider the instructions as a whole and assume the jurors are intelligent persons capable of understanding and correlating all the instructions.
Authority:
People v. Butler (2010) 187 Cal.App.4th 998, 1013
Third Holding:
Murder is the unlawful killing of a human being with malice aforethought. Manslaughter is the unlawful killing of a human being without malice. A defendant lacks malice and is guilty of voluntary manslaughter in limited, explicitly defined circumstances: either when the defendant acts in a sudden quarrel or heat of passion, or when the defendant kills in unreasonable self-defense—the unreasonable but good faith belief in having to act in self-defense.
Authority:
PEN 192
People v. Elmore (2014) 59 Cal.4th 121, 132
People v. Blakeley (2000) 23 Cal.4th 82, 87-88
Fourth Holding:
A defendant commits involuntary manslaughter by committing a homicide with the mens rea of criminal negligence. The offense must be based on one of three predicate acts: (1) killing in the commission of a misdemeanor ; (2) killing in the commission of a lawful act which might produce death, in an unlawful manner, or without due caution and circumspection; or (3) killing in the commission of a noninherently dangerous felony committed without due caution and circumspection.
The performance of an act with criminal negligence supplies the criminal intent for involuntary manslaughter, regardless whether the conduct underlying the offense is a misdemeanor, a lawful act, or a noninherently dangerous felony.
Authority:
People v. Sevilla (2025) 115 Cal.App.5th 618, 626
Fifth Holding:
A killing in perfect self-defense is justifiable homicide. Perfect self-defense requires that one must actually and reasonably believe in the necessity of defending oneself from imminent danger of death or great bodily injury. Imperfect self-defense reduces an intentional and unlawful killing to voluntary manslaughter. Imperfect self-defense occurs when defendants act in the actual but unreasonable belief they are in imminent danger of great bodily injury or death.
Authority:
People v. Odell (2023) 92 Cal.App.5th 307, 321
People v. Lewis (2001) 25 Cal.4th 610, 645
Sixth Holding:
In determining whether error has been committed in giving or not giving jury instructions, we must consider the instructions as a whole and assume that the jurors are intelligent persons and capable of understanding and correlating all jury instructions which are given.
Authority:
People v. Jo (2017) 15 Cal.App.5th 1128, 1172