ok, short answer cos i cant be arsed....
re South Africa, i dont really care tbh...it has no impact on this discussion and that of the Troubles.
This case didnt just come to light after the peace process...its arguably one of THE most significant events of the Troubles. I dont think seeking justice for those events is "harping on" about it.
Important footnote, as part of the good friday agreement etc, it was agreed by referendum that certain PROSECUTED people could be released, under strict terms. It DIDNT determine that all incidents/crimes under investigation would be ignored. Its important to remember that those who were released, or indeed those crimes you are suggesting were "forgot" were in actual fact investigated, tried and punished....justice was served.
Justice has not been served here...he and the rest of them are guilty as hell (insert: IMO) and he'll still have to live the rest of his miserable life under complete protection.
Edit: wanted to add these comments/statements from the Judge. He definitely thought he was guilty.