Once again, I called upon my police brain trust, especially Cal Lash and Bill Richardson; as usual, they provided invaluable help. Frank “Paco” Marcell, retired from the Maricopa County Sheriff’s Office and now running Crime Assessments LLC, is Arizona’s leading expert on gangs. He was very generous with his time in guiding me through the labyrinthine passages of gang land. David William Foster, regents’ professor at Arizona State University, Virginia Foster, professor emerita at Phoenix College, and Deputy Maricopa County Attorney David R. Foster assisted me with everything from the history of the city’s barrios and cleaning up my rusty Spanglish, to keeping my firearms protocols straight. Talk about a family with talent. For help with the Japanese internment, I’m grateful to Jack August, Jr., research professor at the University of Arizona and the best historian in the state, as well as Emily Thompson of the University of Georgia. John Bouma of Snell & Wilmer, a great lawyer and a man of living history, aided me in recalling other pieces of old Phoenix. As usual, blame me for any errors, deliberate changes, or inconsistencies. Finally, as should be clear, America has a treasure in the independent Poisoned Pen Press, and my thanks go to Robert Rosenwald, Jessica Tribble, Nan Beams, Marilyn Pizzo, and Annette Rogers. Most of all, my editor Barbara Peters helped bring it on home with her customary skill and grace-without resorting to South Phoenix Rules.