PHOENIX — An Arizona Court of Appeals panel has wiped out the prison sentence in a Maricopa County manslaughter case after finding that an artificial-intelligence video meant to speak for the victim crossed a constitutional line.
Gabriel Paul Horcasitas was convicted in the 2021 road-rage killing of Christopher Pelkey and received a 10½-year sentence in spring 2025. During victim-impact time, Pelkey’s sister, Stacey Wales, played an AI clip that recreated her brother’s likeness and voice from his writings and social posts, delivering a message of forgiveness the judge later praised from the bench.
On appeal, Horcasitas argued the judge “heard and expressly relied on” a synthetic depiction that was not Pelkey’s actual testimony. Prosecutors cast the video as a family member’s reasonable inference about what the victim would have said. Division One sided with the defense on procedure: the clip “erases the interpretive distance” between a relative’s belief and the victim’s own voice, the court wrote, and so prejudiced sentencing that the process became fundamentally unfair.
The Sept. 30 opinion stressed that no prior Arizona case had settled whether an AI-generated victim depiction may be offered as impact evidence. Importantly for the family, the guilty verdict itself stands; only the sentence is vacated and the case returns for a fresh sentencing hearing.
Wales told local reporters her family is disappointed but ready to speak again under the Victims’ Bill of Rights. She maintains the video tracked Pelkey’s own words and values even if it differed from her personal remarks. No resentencing date has been set.
The ruling lands as Arizona courts nationwide wrestle with generative tools in evidence and advocacy. For Valley prosecutors and defense lawyers, the takeaway is immediate: AI stand-ins for the dead are not a safe substitute for traditional impact statements — at least not without clearer rules from the Legislature or the Supreme Court.