This week on Headline Highlights: A heartbreaking development in the disappearance of 27-year-old Nathan Smith, son of Lil John, as a body has been found that authorities believe may be his. An arrest has been made in the shocking case of Anna Kepner, whose body was discovered hidden beneath a bed on a Carnival Cruise ship. Newly released autopsy reports in the Tepe murders reveal disturbing details about the true brutality of the crimes. And after days full of questions rather than answers, major updates have emerged in the Nancy Guthrie case.