I was surprised that everyone on the left seemed to have forgotten that Megrahi had been framed.
It was Lester Coleman who said it first, I think, and I reviewed his book back in 1993 http://web.archive.org/web/20000901225206/www.informinc.co.uk/LM/LM61/LM61_Libya.html
There was a good documentary on it, too. Pierce is excellent.