California Legal Brief

The Rule of People v. Chang is that imperfect self-defense is unavailable when a defendant's belief in the need for self-defense is based entirely on delusion without any objective correlate that could plausibly relate to a reasonable need for self-defense, under circumstances where the defendant shoots at peace officers based solely on delusional beliefs about CIA persecution without any objective threatening conduct by the officers.

The Rule of People v. Tzul is that a defendant's handwritten note found at a crime scene stating he found victims "having sex" and that this "fills me with rage" is admissible as circumstantial evidence of the defendant's state of mind for provocation defense, under circumstances where the statement about what defendant observed is not hearsay when offered to show defendant's belief rather than truth of the observation, and the statement about defendant's emotional reaction is admissible hearsay under Evidence Code section 1250's state-of-mind exception.

The Rule of People v. Tzul is that a handwritten statement found at a crime scene expressing the defendant's rage and belief about what victims were doing has significant probative value for provocation defense that cannot be substantially outweighed by prejudice concerns under Evidence Code section 352, under circumstances where the statement is the only evidence of provocation and is central to the defense theory.