A former Orem woman who was charged with aggravated assault for shooting out the tires of her ex-husband's car while driving down I-15 in March 1989 pleaded no contest to the charge Friday in 4th District Court.

Arvella Cowdell, 47, will undergo an evaluation to determine if she is mentally ill before being sentenced on Nov. 30. Fourth District Judge George E. Ballif requested the evaluation be expedited and said the sentencing could take place sooner if the evaluation is completed before the sentencing date.Cowdell said she could not remember the incident and believed she did not commit the offense but wanted to bring the matter to an end. She was declared competent to stand trial Oct. 19.

Taylor told Ballif that a guilty but mentally ill plea may be more appropriate. But Ballif said because Cowdell does not remember the incident, she cannot plead guilty to the charge.