At 1:27 on the morning of August 4, 2005, Herbert Manes fatally stabbed Robert Monroe, known as Shorty, in a dispute over five dollars. It was a horrific yet mundane incident for the poor, heavily African American neighborhood of North Philadelphia--one of seven homicides to occur in the city that day and yet not make the major newspapers. For Michael B. Katz, an urban historian and a juror on the murder trial, the story of Manes and Shorty exemplified...