The author would like to acknowledge several works referenced in writing this book, including Falconry and Hawking by Phillip Glasier, the 9/11 Commission Report, and especially The Looming Tower by Lawrence Wright.
Thanks as well to Judge Jeff Donnell, the Martin and Mason Hotel in Deadwood, South Dakota, Don Hajicek, Jennifer Fonnesbeck, Laurie Box, and Molly Box.
Kudos to the wonderful team of professionals at Putnam, including Ivan Held, Kate Stark, Michael Barson, and the legendary Neil Nyren.
And of course Ann Rittenberg, the greatest.