Mark E. Kelton is a former senior executive of the Central Intelligence Agency, concluding his career with the position of Deputy Director of the National Clandestine Service for Counterintelligence (DDNCS/CI).
[1] He is currently an adjunct assistant professor at Georgetown University, and Director of Threat Insider Solutions at Cipher Systems, LLC.
[1][3] Kelton's career at the Central Intelligence Agency was primarily in the realm of counterintelligence, and he spent 16 years performing overseas service.
[4] Kelton was the CIA's station chief in Pakistan during the 2011 raid which killed Osama bin Laden.
[5] Kelton believes he was poisoned by the Inter-Services Intelligence in retaliation for the raid, forcing him to leave due to a medical emergency.