This evening "Piers Morgan Tonight" welcomed Mark Nejame with new details on George Zimmerman, the man charged with killing Trayvon Martin. Joining Piers Morgan for a live interview, the CNN legal analyst shared an exclusive photograph which suggests Zimmerman has black heritage: "The man in the middle is apparently George Zimmerman's great-grandfather. The woman above him, is in fact his grandmother who is half black," explained Nejame. "And the little child in the gentleman's lap, is his mother. So we see that he really has signifcant multiracial, multicultural roots." In a case ripe with racial undertones, Nejame suggests that Thursday's...