Police and rescuers work at a central square in Liege, Belgium, where a gunman lobbed grenades into and opened fire on a crowd of people on Tuesday, Dec. 13, 2011. (AP Photo/dapd, Timur Emek)
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Police and rescuers work at a central square in Liege, Belgium, where a gunman lobbed grenades into and opened fire on a crowd of people on Tuesday, Dec. 13, 2011. (AP Photo/dapd, Timur Emek)
