Seamus Ruddy left Dublin at the age of 32 to work as a teacher in Paris. In May 1985 he was abducted, tortured, and shot in the head.
His remains were discovered in a forest at Pont-de-l’Arche, near Rouen in northern France, in May 2017.
An inquest in Ireland has now ruled he was “unlawfully killed” by person or persons unknown.
He had “connections” with the Irish Republican Socialist Party; its military wing, the Irish National Liberation Army, has claimed it executed him.