Not guilty plea from man who shot ex-NFL player McKnight

GRETNA - The man who fatally shot former NFL player Joe McKnight has pleaded not guilty to a second-degree murder charge.A lawyer for 55-year-old Ronald Gasser told reporters after Monday's arraignment in the New Orleans suburb of Gretna that McKnight's death was a case of justifiable homicide.Gasser, from Terrytown, had initially been arrested on a manslaughter charge. Last week he was indicted on a second-degree murder charge, which carries a mandatory life sentence. He's jailed on $750,000 bo