The Arizona Court of Appeals has vacated the murder conviction of Whitney Lee Castleberry, ruling that the jury received misleading instructions regarding self-defense. This decision, filed on June 12, 2026, affects Castleberry's future and sets a precedent for how self-defense cases are handled in Arizona.
The case began when Castleberry shot her ex-partner, Joe, during a confrontation at her apartment. The court's ruling highlights the importance of clear jury instructions in self-defense cases and the potential consequences when those instructions are flawed.
Background
Whitney Lee Castleberry and Joe had a tumultuous relationship that started in 2009, during which they had a son together. In 2020, Castleberry signed a lease for an apartment, where Joe lived without being on the lease. Tensions escalated when Joe was locked out and later kicked in the door, leading to his arrest. Castleberry paid for the repairs after the incident.
The situation turned deadly in May 2021 when Joe returned to the apartment after a night of drinking. Following a heated argument where Castleberry discovered Joe's infidelity, he became physical, elbowing her and slapping her. After Joe left the apartment, he returned later, pounding on the door. Feeling threatened, Castleberry armed herself and shot Joe when he pushed the door into her. Joe died from his injuries, and Castleberry was charged with second-degree murder.
The Ruling
The Arizona Court of Appeals, led by Vice Chief Judge David D. Weinzweig, ruled that the jury instructions given during Castleberry's trial were misleading. The court stated, "A person who has an absolute and unlimited right to be in a dwelling cannot commit a criminal trespass thereof." This instruction shifted the focus from whether Castleberry reasonably believed Joe was trespassing to his legal status as a tenant.
The court found that this misdirection adversely affected the jury's understanding of Castleberry's justification for using deadly force. The ruling emphasized that justification defenses belong to defendants and should not be framed around the victim's legal status. The court also criticized the inclusion of instructions from Arizona’s Residential Landlord-Tenant Act, which were deemed irrelevant in the context of a criminal trial.
Impact
This ruling has significant implications for future self-defense cases in Arizona. The court's decision underscores the necessity for trial courts to provide accurate and relevant jury instructions that do not confuse jurors. By vacating Castleberry's conviction, the court has highlighted the importance of evaluating a defendant's reasonable belief in the necessity of using force, rather than the legal status of the victim.
The ruling may also influence how similar cases are prosecuted in the future, particularly those involving domestic violence and self-defense claims. It reinforces the idea that jurors must focus on the defendant's perspective and circumstances when determining the reasonableness of their actions.
What's Next
Castleberry's case has been remanded for a new trial, where she will have the opportunity to present her defense again under clearer legal guidance. The State may also consider whether to appeal the Court of Appeals' decision, but details on potential appeals were not available in the court filing.