Thanks, Peter K.
BBC Radio 4 is broadcast on the net, I am listening to it now. (The next program up, the "Archers," will not find me listening; it is a bit beyond American-Canadian comprehension.

The announcement of the trial broadcast mentions the doubts about Megrahi's conviction, and the possible miscarriage of justice.

Scottish judicial system- A verdict not possible in American courts is "not proven." Also not possible is "compassionate release."