CORDELL, Okla. (AP) — An Oklahoma doctor plans to challenge his conviction in the fatal shooting of his father-in-law.

The Oklahoman reports that a jury last week found 57-year-old Dr. Jerry Hernandez guilty of first-degree manslaughter and sentenced him to four years in prison.

Hernandez's attorney, Mark Henricksen, says they plan to appeal the decision.

Hernandez had testified at trial that he shot 78-year-old Roy Lee Weeaks in self-defense. He says he fired his gun because he feared Weeaks was pulling out his own weapon.

Court documents show that the December 2016 shooting in Cordell occurr...