Abdelbaset al-Megrahi 10 August 2009 that he had terminal prostate cancer. On his return to Libya, al-Megrahi was initially hospitalized then allowed to leave on 2 November 2009, taking up residence in a villa in Tripoli. He died on 20 May 2012, two years and 9 months after his release. Several legal experts as well as the UN observer at the Lockerbie trial have vehemently challenged the verdict that convicted Megrahi, while Ulrich Lumpert, the Mebo AG engineer who testified to the validity of a key piece of evidence, admitted in an affidavit to lying in court and stealing the object from
Hans Köchler's Lockerbie trial observer mission in the long term depend on whether it is able to ensure the supremacy of the law over considerations of power and convenience." Hans Köchler's Lockerbie trial observer mission Hans Köchler's Lockerbie trial observer mission stemmed from the dispute between the United Kingdom, the United States, and Libya concerning arrangements for the trial of two Libyans accused of causing the explosion of Pan Am Flight 103 over Lockerbie on 21 December 1988. The dispute was resolved on the basis of legally binding United Nations Security Council Resolution 1192 of 27 August 1998. UN Security Council resolution 1192 "welcomed" "the initiative