Wrongful conviction with falsified evidence

[What follows is taken from the Very Rev Prof Iain Torrance's obituary of the Rev Dr John Cameron in today's edition of The Scotsman:]

In retirement, desperate to maintain an active brain, he turned to the newspapers. Over the years he took pleasure in being able to reach more people through his letters than he ever did from the pulpit and built a loyal following. He used to send these to me, always with the email heading, ‘Warblings’ or ‘More Warblings’. He was particularly proud to have supported his friend Margo Macdonald in her efforts to legalise Assisted Dying in this country, as well as Abdul Basset Ali al-Megrahi and his wrongful conviction of the Lockerbie bombing with falsified evidence. And I know that Abdul Basset Ali al-Megrahi used to send John Christmas cards from Barlinnie in gratitude for his kindness.