Pardon me for saying so, but there's a huge gulf between "there were some links between PFLP-GC and Libya" and "Megrahi planted the bomb". Establishing the truth of the first does not get you very far in establishing the truth of the second.
There is one huge, enormous yawning chasm in the case against Megrahi, and that is the alleged routing of the IED from Malta through Frankfurt to London that morning. There is no evidence the bomb suitcase travelled that route. None at all. On the contrary, there is "considerable and quite convincing evidence that that could not have happened" (Lord Osborne).
The prosecution established that Megrahi was at the airport in Malta that morning, at the time the Frankfurt flight departed. However, they also established that he didn't check in any luggage for his Tripoli flight, he wasn't carrying any suitcase, and he didn't go airside at any stage. He didn't meet anyone there, and nobody else was identified as being a possible accomplice. He behaved exactly as any passenger would who was merely at the airport to catch a plane - except that he was travelling on a coded diplomatic passport he had been issued with a couple of years earlier, in connection to business deals he was negotiating for the Libyan government, which was in a false name.
They investigated the passengers and luggage on the Frankfurt flight till their pips squeaked. The security systems at Malta were surprisingly good for a small regional airport - or maybe not that surprising when you take into account who their neighbours were, and that it's easier to keep good security in a small operation. All the passengers and luggage were accounted for, all the luggage belonged to
bona fide passengers, and there was simply no lacuna in the evidence that would accommodate an unaccompanied bag on that plane.
Not only that, but all the luggage that passed through Frankfurt on to PA103A was x-rayed at Frankfurt by a "careful and conscientious operator" who had been specifically alerted to the possibility of bombs disguised as Toshiba radio-cassette recorders. The x-ray operator saw nothing suspicious in that luggage.
The prosecution maintained, and the judges accepted, that somehow Megrahi had in fact facilitated the loading of the bomb on to KM180 at Malta, despite the complete lack of evidence for any such thing having happened, and pretty damn good evidence that it didn't.
This is the central plank of the concerns about the Zeist verdict. The judges acknowledged that "The absence of any explanation of the method by which the primary suitcase might have been placed on board KM180 is a major difficulty for the Crown case". They then proceeded to ignore the difficulty, and without giving any hint as to how they overcame it, simply announced that they'd decided it happened anyway.
How can this happen in a properly-constituted court of a civilised western nation - my nation, dammit? Partly, because the court wasn't "properly constituted". A special dispensation had been given for judges to hear the case without a jury. Juries do some damn stupid things sometimes so nobody can ever be sure what decision a jury would actually have come to. However, I think it takes a peculiarly twisted legal mind to concoct the circular reasoning and chain of unsupported inference the Zeist judges used to convict Megrahi.
This verdict is a judicial horror that is a stain on Scotland's justice system. And I'm sorry if it offends Bunntamas, but I'm going to go on saying so.
Rolfe.