Saturday night's first hour guest, Galen Cook, sent us images and analysis of the letters allegedly sent by D.B. Cooper after his infamous heist. He tells us, "My research shows that four D.B. Cooper letters all surfaced within one week after America's most celebrated, unsolved air hijacking. All four letters were sent to major newspapers, not to the FBI. The sequence and timing of the letters is very important, as they show the "escape route" of D.B. Cooper. They also show a "connection" to our suspect, Bill Gossett." You can view the complete report here.