A Washington state appellate court has granted a new trial for a Clarkston woman convicted of killing her former boyfriend three years ago.

The state Court of Appeals in Spokane reversed the first-degree murder and burglary convictions of Kelley Wilson, 42, who was sentenced to 30 years in prison for the March 5, 2005, stabbing death of Charles Thrush at his Clarkston Heights residence.

Court documents show that Wilson, while in jail on a domestic violence charge, had told a cell mate that she was going to stab Thrush to death. Appellate judges ruled that the Asotin County trial court erred in admitting that evidence as highly prejudicial. Other issues of a Miranda rights violation and the inexperience of Wilson’s public defender in murder cases also contributed to the Appeals Court ordering a new trial.

Wilson, who has been serving her prison term in Gig Harbor, is expected to be transported back to Asotin County within the next month.