A judge has declared a mistrial in the criminal case against 75-year-old Arizona rancher George Alan Kelly, accused of fatally shooting a migrant on his property near the U.S.-Mexico border, the court confirmed Monday night. Kelly was charged with second-degree murder and aggravated assault in the Jan. 30, 2023, fatal shooting of Gabriel Cuen-Buitimea, 48, a migrant who lived across the border in Nogales, Mexico. Law enforcement officials said Cuen-Buitimea was traveling with a group of migrants who ran when they saw border patrol agents in the area.