Oliver North shredding government documents related to these activities at William Casey's suggestion when the Iran-Contra scandal became public. He also testified that Robert McFarlane had asked him to alter official records to delete references to direct assistance to the Contras and that he had helped. North was tried in 1988. He was indicted on 16 felony counts, and on May 4, 1989, he was initially convicted of three: accepting an illegal gratuity, aiding and abetting in the obstruction of a congressional inquiry, and ordering the destruction of documents through his secretary, Fawn Hall. He was sentenced by U.S. District Judge Gerhard
United States Secretary of Defense 2,595 days. Combining his two non-sequential services as Secretary of Defense, the second longest serving is Donald Rumsfeld, who served just ten days fewer than McNamara. The shortest-serving Secretary of Defense is Elliot Richardson, who was quickly moved to US Attorney General after 114 days due to resignations during the Watergate Scandal (not counting Deputy Secretary of Defense William P. Clements and William Howard Taft IV, who each served a few weeks as temporary/acting Secretary of Defense). The Secretary of Defense is sixth in the presidential line of succession, following the Secretary of the Treasury and preceding the Attorney General.