A mother hangs an ornament on the Colorado Tree of Heroes at the Colorado State Capitol building in Denver Dec. 6, 2011, for her son who died during overseas contingency operations. Colorado Gov. John Hickenlooper hosted the ceremony for the memorial Tree of Heroes to honor all Colorado-based service members who have lost their lives in combat operations since Sept. 11, 2001. (Colorado National Guard photo by Capt. Darin Overstreet/RELEASED)
More photos from this event are available in Flickr.