A jury has convicted a former Unadilla man in the murder of his wife 17 years ago. On Friday Casey Callahan was found guilty of deliberately running over his wife, Elizabeth, with an 18-wheeler at a gas station off Route 17 near the Pennsylvania border. Callahan is already serving a 12 ½-year sentence at Attica Correctional Facility for a criminal sexual act in 2008. Sentencing is set for October 30.