Murder suspect Brian S. Guggenbiller, 52, of Lima, keeps his head bowed during an arraignment hearing Monday in Auglaize County Common Pleas Court. He pleaded not guilty to the 1981 slaying of a retired St. Marys farmer. His court-appointed attorney, Robert Gryzbowski, at left, said Guggenbiller may change his plea to not guilty by reason of insanity after undergoing a psychological exam. On the defense table is a stack of 1,119 pages of information about the case gathered by the prosecution.