CNN's Joe Sutton, Dave Alsup, Mike Ahlers, Chuck Johnston, Esprit Smith, Greg Botelho and Marnie Hunter contributed to this report.

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CNN's Joe Sutton, Dave Alsup, Sandra Endo, Chuck Johnston, Esprit Smith, Greg Botelho and Marnie Hunter contributed to this report.

CNN: STORY HIGHLIGHTS

Shoichet, Marilia Brocchetto, Sarah Aarthun, Alexander Hunter, Mitra Mobasherat, Chandrika Lakshminarayan and Esprit Smith from Atlanta.

CNN: STORY HIGHLIGHTS