The Oklahoma Court of Appeals has upheld the first-degree murder conviction and life prison sentence of a Tulsa man.
The court on Friday rejected appeals by 26-year-old Brian Xavier Harris of improper evidence and improper testimony during his trial.
Harris was convicted in 2015 of the strangulation death of his girlfriend, 23-year-old Ashley Brizendine.
Harris told police Brizendine's death was an accident and his defense attorney argued that Harris' actions after the woman's death show he had tried to save her.
Brizendine was found unresponsive July 12, 2013, on the floor of the apartment she shared with Harris and was pronounced dead a short time later.