Bettina Giancana is a recognized expert in the organized crime genre who has authored two nonfiction New York Times bestsellers, Double Cross and Double Deal , as well as the fictional 30 Seconds . Her work on Double Cross received international critical acclaim for its smooth, well-written style and factual historical content as well as complex, integrated storylines and highly entertaining presentation.Michael Zimmer grew up on a small Colorado horse ranch and began to break and train horses for spending money while still in high school. An American history enthusiast from a very early age, Zimmer has done extensive research on the Old West. He is the author of over ten Western novels.… Zimmer lives in Utah.