When the Libyan intelligence operative Abdel Baset al-Megrahi eventually dies of the prostate cancer that so controversially won him his freedom from a Scottish prison, his death will trigger headlines around the world.    

But few tears will be shed for the only man ever found guilty of the 1988 bombing of Pan Am 103 – until 9/11, the most lethal terrorist attack ever on American civilians.

Certainly not by the American families, who felt shock and revulsion at al-Megrahi's release. Nor by American politicians, infuriated at the long list of British and Scottish officials who have refused to testify before a Senate committee investigating possible backroom deals involving Scottish and British officials, British commercial interests and the Libyan government.

Yet by the accounts of those who knew him best, the convicted man himself will go to his grave insisting he was innocent of the murder of the 270 passengers, crew and residents, who perished at Lockerbie in Scotland, that December night.

Drawing exclusively on a previously confidential, legal report, The Pan Am Bomber reveals the evidence that would have been presented in al-Megrahi's stillborn appeal against his conviction. 

Our investigation is backed up by 97 gigabytes of official documents, whistleblower testimony and photographic evidence - all of which will explain why and how al-Megrahi's conviction was fatally flawed. It reveals how the chain of evidence used to convict al-Megrahi was broken and, in at least one crucial instance, tampered with.

It also shows why it was in the interest of all of the parties (except the convicted man himself) to make sure that the appeal was never heard.

Lockerbie: The Pan Am bomber can be seen from Thursday, November 17, at the following times GMT: Thursday: 2000; Friday: 0600; Saturday: 0100; Sunday: 0600; Monday: 2000; Tuesday: 1200; Wednesday: 0100; Thursday: 0600.