The Florida law made infamous this spring by the killing of unarmed teenager Trayvon Martin was conceived during the epic hurricane season of 2004. That November, 77-year-old James Workman moved his family into an RV outside Pensacola after Hurricane Ivan peeled back the roof of their house. One night a stranger tried to force his way into the trailer, and Workman killed him with two shots from a .38 revolver. The stranger turned out to be a disoriented temporary worker for the Federal Emergency Management Agency who was checking for looters and distressed homeowners. Workman was never arrested, but three months went by before authorities cleared him of wrongdoing.....