Defendant charged with second-degree murder and manslaughter.
Pool photo by Gary W. Green,via AP
An expressionless George Zimmerman watched on Thursday as a Florida state prosecutor began closing arguments in the Trayvon Martin murder trial. Prosecutor Bernie de la Rionda argued that Zimmerman incorrectly assumed 17-year-old Martin was a criminal, then acted on the assumption by following him and eventually shooting him—and the law...