Epona,
Wolfgang obtained his data from Sutton's Index

Some years ago similar figures were posted from Amnesty International.

Are you shocked at the number of killings attributable to Republican paramilitaries? Does it change your outlook at all?

You may not be able to get a further breakdown of the Republican groups, But PIRA is far and away the biggest of them. Omagh is perhaps the only large scale massacre committed by a break away group.