OKLAHOMA CITY (AP) — The Oklahoma Court of Criminal Appeals has rejected the appeal of a man convicted of gunning down another man who was on his knees.

The court on Thursday upheld the first-degree murder conviction and life without parole sentence of 48-year-old John Joseph Quinter Jr.

Quinter was convicted in the fatal shooting of Robert Almon in 2015 the driveway of Quinter's home in Bethel Acres on the southeastern edge of Oklahoma City.

Quinter argued the jury should have been instructed to consider the lesser charge of first-degree manslaughter, prosecutorial misconduct and ineffective...