Specialist Tad Donoho screams with pain after being administered a "pink belly" for his birthday: Each member of the platoon struck his stomach until it bruised. July 2008. Tim Hetherington hide caption

itoggle caption Tim Hetherington

Secretary of Defense Leon E. Panetta, far right, escorts Afghanistan's Minister of National Defense Abdul Rahim Wardak (center) and Minister of Interior Gen. Bismillah Khan Mohammadi (left) in the Pentagon. Erin A. Kirk-Cuomo/OASD/PA hide caption

itoggle caption Erin A. Kirk-Cuomo/OASD/PA

Pakistani security personnel stand guard outside the house in Islamabad where family members of al-Qaida chief Osama bin Laden are being held. Aamir Qureshi /AFP/Getty Images hide caption

itoggle caption Aamir Qureshi /AFP/Getty Images

During the raid on Osama bin Laden's compound in Abbottabad, Pakistan, a video showing the al-Qaida leader watching television was discovered. AFP/Getty Images hide caption

itoggle caption AFP/Getty Images

This August 23, 2011 photograph obtained courtesy of the Defense Video & Imagery Distribution System (DVIDS) shows Staff Sgt. Robert Bales (right) at the National Training Center in Fort Irwin, California. (Note at 10:50 p.m. ET: Earlier, we mistakenly said he was on the left.) Spc. Ryan Hallock /AFP/Getty Images hide caption

itoggle caption Spc. Ryan Hallock /AFP/Getty Images

Army Staff Sgt. Robert Bales during an August 2011 training exercise at Fort Irwin, Calif. Spc. Ryan Hallock/AFP/Getty Images hide caption

itoggle caption Spc. Ryan Hallock/AFP/Getty Images

From video of the incident, as the helicopter swooped low over a snowy base in Afghanistan moments before crashing in the distance. YouTube.com hide caption

itoggle caption YouTube.com