Earlier this week, the Associated Press published an article about recently-released surveillance tapes from the area around the Murrah Federal Building in Oklahoma City. Wanting to find out more about it, I sought out Jayna Davis, author of The New York Times best-selling book,"The Third Terrorist,” which chronicled her decade-long investigation of the bombing and who was behind it. In short, I became the first journalist/blogger with whom Davis has spoken about the case in four years (and she’s had countless requests for interviews). On Tuesday, I followed up my interview of Davis with an interview of David P. Schippers,...