A jury has found Hazel Stewart guilty of the double murder of her husband and her former lover's wife.
Stewart, 48, from Coleraine, is to serve a life sentence for the murders of Trevor Buchanan and Lesley Howell in May 1991.
Her ex-lover, former dentist Colin Howell, is serving 21 years after he pleaded guilty to the killings.
The jury at Coleraine Crown Court took two and a half hours to find Stewart guilty after a 15-day trial.