John A. Rizzo

During the George W. Bush administration, the Office of Legal Counsel in the Department of Justice approved various forms of torture (referred to as "enhanced interrogation techniques") in memos to Rizzo for use by CIA interrogators at the black sites. Rizzo signed off on all CIA-directed drone strikes from September 2001 until October 2009.
He was a visiting fellow at the Hoover Institution and Senior Counsel at the Steptoe & Johnson law firm. Provided by Wikipedia