(Beaverton, OR) -- A Beaverton man has been sentenced to 20 years in prison for killing his wife. Talon Mitchell was 19 years old in 2023 when he shot his wife, 24-year-old Oulaykham Chopheng, in the head. A Washington County grand jury indicted Mitchell for Murder in the Second Degree. He pleaded guilty to Manslaughter in the First Degree.