Geoffrey was co-counsel in some of the most difficult war crimes cases arising out of the war in Iraq and Afghanistan which cases were prosecuted by the United States of America against United States soldiers for unlawful killing/execution of civilians and combat enemy detainees. The names of the cases are the Kill Company, Stryker brigade, Iron Triangle, the Killings at the Canal.
Included below are the stories of some of his cases
http://www.rollingstone.com/politics/news/the-kill-team-20110327
(OTHER WIKIPEDIA LINKS FOR WILLIAM HUNSAKER, JOHN E HATLEY JOSEPH MAYO)