It wasn't a great day for George Zimmerman yesterday, as a series of stories raised fresh doubts about his tale of killing Trayvon Martin in self-defense. First, the funeral director who prepared Martin's body for burial said he observed no signs of a struggle, reports CBS News. Aside from the gunshot wound to the chest, "We could see no physical signs like there had been a scuffle," he explained. "The hands—I didn't see any knuckles, bruises, or what have you. And that is something we would have covered up if it would have been there." Also: