V. Stuart Couch

V. Stuart Couch was a Marine pilot and prosecutor assigned to build a case against Mohamedou Ould Slahi at Guantánamo Bay detention camp. The September 11 attacks had a personal consequence for Couch: his close friend Michael Horrocks was the copilot on the United Airlines flight that struck the World Trade Center’s South Tower. Couch returned to active service and joined the military commission’s prosecution team hoping to pursue those responsible. His work on Slahi’s case then brought him into contact with evidence that, in his view, pointed not to a sound prosecution but to torture.

Background and Entry into the Case

Couch’s connection to the September 11 attacks was not abstract. Horrocks had been his close friend and fellow refueling-tanker pilot in the Marines. After Horrocks was killed, Couch returned to active service; by 2007, a profile described his aim in joining the Guantánamo prosecution team as getting an opportunity to pursue the attackers. That purpose formed the personal background to his later assignment, rather than evidence about Slahi’s own conduct.

In fall 2003, Couch was assigned to build the case against Slahi. The assignment placed him inside an emerging dispute about how prisoners at Guantánamo were being questioned. Military interrogators were increasingly diverging from the FBI and Criminal Investigation Task Force agents who had generally led interviews. The military’s Special Projects Team had developed harsh methods for other prisoners, amid strong objections from those civilian investigative agencies. Couch’s case would involve a separate, Rumsfeld-approved special interrogation plan for Slahi.

Suspicions and the Documentary Trail

Couch’s doubts did not arise from the interrogation reports alone. He was told that Slahi was on Special Projects, and during an early visit to the base he saw a prisoner shackled in an empty interrogation booth, rocking as a strobe light flashed and loud music played. The scene recalled techniques Couch himself had endured for a week in a Marine program preparing airmen for capture and torture. The sight gave him a basis for concern, but it did not yet show what had happened to Slahi.

A Naval Criminal Investigative Service investigator working with Couch gained access to the military interrogators’ files. Those files included daily memoranda recording both what was said in interrogation sessions and how the information had been obtained. The records remain classified; their contents are described in the Senate Armed Services Committee’s 2008 inquiry and in the U.S. Department of Justice’s review of interrogations in Guantánamo, Afghanistan, and Iraq. Together, the records and the later summaries provided a documentary basis for assessing Slahi’s account, rather than relying on recollection alone.

The reports described a second, detailed plan for Slahi’s interrogation, approved by Defense Secretary Donald Rumsfeld, and a course of treatment that closely matched the account in Guantánamo Diary. Two documents were especially consequential for Couch. One was a fictitious State Department letter, presented to Slahi in August 2003, claiming that his mother had been detained and might be transferred to Guantánamo if she did not cooperate. The other was an October 17 email exchange between an interrogator and a military psychiatrist. The interrogator reported that Slahi said he was hearing voices and worried that this was abnormal; the psychiatrist replied that sensory deprivation could cause hallucinations. In early 2004, after the investigator uncovered these materials, Couch was convinced that Slahi had been tortured.

The Prosecutor and the Evidence

Couch’s role gives the evidence particular force in the book’s account. He had joined the prosecution team with a purpose shaped by the loss of a close friend, and Slahi’s case was part of that work. Yet the materials Couch encountered did not simply advance a prosecution. They documented how information had been extracted and showed that the interrogation plan targeted Slahi’s relationship with his mother and subjected him to conditions associated with sensory deprivation. The records shifted attention from the content of Slahi’s reports to the circumstances in which they were produced.

That distinction matters because Couch had received intelligence reports from both the CIA and the military. The CIA provided him no intelligence reports of its own about Slahi, and most reports it did share came from Slahi’s Guantánamo interrogation. Couch had learned that Slahi had been held by the CIA for six months; he later reasoned that the agency may have concluded it had obtained what it could, or that the information did not support the significance attributed to him, before transferring him to military control at Bagram. This was Couch’s inference, not a confirmed account of the CIA’s decision-making.

Significance

Couch is presented neither as a detached observer nor as the source of every conclusion about Slahi’s treatment. His personal history explains why he entered the prosecution, while his examination of the files supplies a different kind of testimony: an investigator within the case found that the interrogation records confirmed his suspicions. The contrast is central to his narrative role. The same process intended to build a case also preserved evidence about the methods used to secure the information.

The account also distinguishes documented findings from what remains inaccessible. The interrogators’ original files are classified, and the public record described in the book consists of summaries in official investigations and the evidence Couch’s investigator was able to examine. Those materials substantiate key features of Slahi’s account without making every detail of the secret record available. Couch’s importance lies in the convergence of personal stakes, prosecutorial responsibility, and documentary scrutiny: the files he encountered made the means of interrogation part of the case itself.