Every small town has a moment when the real world abruptly intrudes, shattering the town's notions of itself and its people. For citizens of Marshall, Michigan, that moment came August 18, 1967. Nola Puyear was working downtown at the Tasty Cafe that morning when she received a package. She opened it and was instantly killed in a fiery explosion. In the months that followed, law enforcement and prosecutors wrestled with a crime that to all...