Not only will it be impossible to find a jury without preconceived opinions in the Trayvon Martin case—it will be impossible to find one that will convict, says Mansfield Frazier. An editor I used to work for had a favorite saying: “Predicting the future is usually as easy as stating the obvious.” In the upcoming trial of George Zimmerman, the “obvious” is this: there’s little, if any, chance to avoid not only a mistrial, but a series of them if the state continues to reindict him, which it has the right to do and no doubt will, but with the...