Book excerpt: Jimmy DiAnno is a thirty-four-year-old, hard-charging prosecutor in the homicide unit of the Philadelphia District Attorney's Office. A talented trial attorney, he takes great pride in his ethical responsibility to see that justice is served. Jerry T. Savitch is not just the mayor of Philadelphia-he is "America's" mayor. He took a shattered city on the brink of fiscal and social ruin and turned it into a thriving metropolis. In Philadelphia, there is no one more beloved-or with more political connections-than Jerry T. Savitch. When Mayor Savitch is charged with a brutal murder, DiAnno is the man tapped to try the case. But for DiAnno, this will not be a simple test of his trial skills. He will learn that there is little difficulty in choosing between right and wrong; but, when faced with two wrongs, the true difficulty lies in choosing which wrong is more right.