OGDEN -- A report of a fireball in the sky and a veiled threat from a mysterious man in a dark suit could aid a lawyer's dogged quest to prove a former Weber State ROTC instructor was infamous skyjacker D.B. Cooper. Galen Cook, a Spokane, Wash., attorney says he's found perhaps the only eyewitness to Cooper's daring parachute escape from a Boeing 727 more than 38 years ago into the dark abyss of the Pacific Northwest. Cook, who has been pursuing the Cooper case for more than two decades and is writing a book about his investigation, believes a woman...