Photos of the Year: 2011 Winners: Photographer of the Year: 2011_pro_01_22

Photographer of the YearLogan Mock-BuntingA crowd outside the White House celebrates the news of Osama bin Laden's death, May 5, 2011. People cheered and sang for hours in Washington DC after the Al-Qaida leader was announced killed by US Special Forces in Pakistan.

Photographer of the Year 

Logan Mock-Bunting 

A crowd outside the White House celebrates the news of Osama bin Laden's death, May 5, 2011. People cheered and sang for hours in Washington DC after the Al-Qaida leader was announced killed by US Special Forces in Pakistan.