CORVALLIS, Ore. - KATU News has learned that investigators are about to announce a significant breakthrough in the case involving the disappearance of Brooke Wilberger. Police are not saying specifically if they have made an arrest, but they are giving every indication that Wednesday afternoon they will be sharing information about a major step forward in the case - a breakthrough culminating a year and two months of investigation. Brooke Wilberger's disappearance is a mystery that has loomed in the minds of many for more than a year - how does a 19-year-old woman simply vanish while cleaning lampposts at...