Tainted evidence

"When a heavily armed drug-dealing murder suspect, holed up in an abandoned building in Harlem, shoots five officers in a botched police raid, the Manhattan district attorney's office has what appears to be an open-and-shut case. The aging district attorney passes over his politically ambitious chief assistant to assign the high-profile case to Karen Henning, the smart, young head of the trial division with a reputation for fierce independence." "But the seemingly straightforward ease, bogged down in the often-corrupt criminal justice system, explodes when New York City's racial unrest is…