In his closing brief before the court, numbering some 500 pages, Chea "blamed Vietnamese agents for virtually everything that went wrong during Khmer Rouge rule." He also denied responsibility for mass killings, but this was contradicted by detailed documentation left behind by the Khmer Rouge regime itself, including bizarre "confessions" extracted under torture at Tuol Sleng and photographs of purge victims, as well as a recording made by a Cambodian journalist prior to Chea's 2007 arrest in which Chea admitted: "Believe me, if these traitors were alive, the Khmers as a people would have been finished. ... If we had shown mercy to these people, the nation would have been lost."