Rob Griffith/AP Photo
  • An injured hostage is carried to an ambulance after shots were fired during a cafe siege at Martin Place in the central business district of Sydney, Australia, Dec. 16, 2014.
    Rob Griffith/AP Photo
  • An injured hostage is wheeled to an ambulance after shots were fired during a cafe siege at Martin Place in the central business district of Sydney, Australia, Dec. 16, 2014.
    Rob Griffith/AP Photo
  • Hostages run towards armed tactical response police as they run to freedom from a cafe under siege at Martin Place in the central business district of Sydney, Australia, Dec. 16, 2014.
    Rob Griffith/AP Photo
  • Hostages emerge from a cafe under siege at Martin Place in the central business district of Sydney, Australia, Dec. 15, 2014.
    Channel 9 Australia
  • A female hostage stands by the front entrance of the cafe as she turns the lights off in the Sydney central business district, Dec. 15, 2014.
    William West/AFP/Getty Images
  • Two hostages, left, run for cover behind a policeman, right, during a hostage siege in the central business district of Sydney on Dec. 15, 2014.
    William West/AFP/Getty Images
  • Two hostages run to safety outside the Lindt Cafe, Martin Place on December 15, 2014 in Sydney, Australia.
    Mark Metcalfe/Getty Images
  • An armed tactical response police officer grabs a hostage as she flees from a cafe under siege at Martin Place in the central business district of Sydney, Australia, Dec. 15, 2014.
    Rob Griffith/AP Photo
  • A hostage runs to armed tactical response police officers for safety after she escaped from a cafe under siege at Martin Place in the central business district of Sydney, Australia, Dec. 15, 2014.
    Rob Griffith/AP Photo
  • Onlookers gather in Martin Place in the central business district of Sydney on Dec. 15, 2014. A gunman was holding hostages inside a Sydney cafe.
    Peter Parks/AFP/Getty Images
  • Armed police patrol on Dec. 15, 2014 in Sydney, Australia.
    Joosep Martinson/Getty Images
  • Armed police evacuates office staff next to a cafe in the central business district of Sydney on Dec. 15, 2014.
    Saeed Khan/AFP/Getty Images
  • This image taken from video show people holding up what appeared to be a black flag with white Arabic writing on it, inside a cafe in Sydney, Australia, Dec. 15, 2014.
    Channel 7 video/AP Photo
  • This image taken from video shows people holding up hands inside a cafe in Sydney, Australia, Dec. 15, 2014.
    Channel 7 via AP
  • This image taken from video shows people against shop windows holding up hands inside a cafe in Sydney, Australia, Dec. 15, 2014.
    Channel 7 via AP
  • Police evacuate people from an office building close to a cafe under siege at Martin Place in the central business district of Sydney, Australia, Dec. 15, 2014.
    Rob Griffith/AP Photo
  • Armed police patrol on December 15, 2014 in Sydney, Australia.
    Joosep Martinson/Getty Images
  • Construction workers gather in front of the Sydney Opera House after being evacuated on Dec. 15, 2014 in Sydney, Australia.
    Joosep Martinson/Getty Images
  • An armed policeman is seen outside a cafe in the central business district of Sydney on Dec. 15, 2014.
    Saeed Khan/AFP/Getty Images
  • Police stand at the ready close to a cafe under siege in Martin Place in the central business district of Sydney, Australia, Dec. 15, 2014.
    Rob Griffith/AP Photo
  • Armed police are seen outside a cafe in the central business district of Sydney on Dec. 15, 2014.
    Peter Parks/AFP/Getty Images
  • A sniper sets up on Philip Street at Martin Place on Dec. 15, 2014 in Sydney, Australia.
    Don Arnold/Getty Images
  • Armed police patrol the vicinity at Lindt Cafe, Martin Place on Dec. 15, 2014 in Sydney, Australia.
    Don Arnold/Getty Images
  • Police officers chat on the scene of the siege at Lindt Cafe in Martin Place on Dec. 15, 2014 in Sydney, Australia.
    Daniel Munoz/Fairfax Media via Getty Images
  • Girls rush through Philip Street past armed police at a cafe on Dec. 15, 2014 in Sydney, Australia.
    Don Arnold/Getty Images
  • Police officers chat on the scene of the siege at Lindt Cafe in Martin Place on Dec. 15, 2014 in Sydney, Australia.
    Don Arnold/Getty Images
  • Armed police are seen outside a cafe in the central business district of Sydney on Dec. 15, 2014.
    Peter Parks/AFP/Getty Images