Shayna Feinman disappeared in rural Yavapai County, Arizona, in March 2024 at age 38. She was believed to be walking to an acquaintance's home but never arrived. Her car was found abandoned nearby, her wallet and ID inside, her phone recovered on adjacent land. Two men — her boyfriend Cavett Richards and a man named William DalCerro — were charged with second-degree murder, conspiracy, and concealing a corpse. Those charges were later dismissed. A $20,000 reward remained outstanding. On Saturday, Tijuana's Secretariat for Security and Citizen Protection issued a public statement claiming Feinman had been located alive in the city's Encino neighborhood. The statement included a photograph of a woman seated in front of a desk displaying a missing-person poster bearing Feinman's information. Officials asserted they had confirmed her identity based on matching physical characteristics. They placed the woman in protective custody and even posted a link to their announcement on Feinman's sister Kara's social media page. Both the Yavapai County Sheriff's Office and Kara Feinman responded with skepticism. Kara told KSAZ she was waiting for the sheriff's office "to know for certain," acknowledging the woman had "similar physical attributes" but adding: "We have to be realistic." Sheriff's office spokesperson Paul Wick said the agency was aware of reports but that "there is insufficient evidence to verify her identity." On Tuesday, the sheriff's office published its definitive update: "US authorities confirmed to detectives, utilizing physical evidence, that the individual located is not Shayna Feinman." The office noted that prior media reports "were published without official law enforcement confirmation." Tijuana's secretariat did not respond to a request for comment from the Guardian. Kara Feinman told the Guardian that the confusion appears to have originated with at least one concerned citizen who became convinced Shayna was in Tijuana and amplified that belief on social media. Tijuana officials apparently acted on this without adequate verification. Kara described the emotional whiplash of being guarded, then reluctantly hopeful, then subjected to cyberbullying by online users who attacked her for not reacting with sufficient joy to the false report. "Words are stronger than people think, and kindness can go so far," Kara Feinman said. "It's been turmoil going through this. It's heartbreaking. It's terrible, and I don't wish this on anybody." The search for the truth about Shayna Feinman's disappearance continues, the murder charges remain dismissed, and no body has been recovered. The episode is a case study in how institutional failure compounds private grief. A foreign law enforcement agency issued a public claim it could not substantiate, social media amplified it without verification, and the family absorbed the full cost of each incorrect signal. No accountability mechanism exists for the harm inflicted by Tijuana's premature announcement.