WHEN he not only abandoned PIRA terror but fought it and exposed its sinister ideology, he became a true Irish Patriot. O’Callaghan, John Marian [Seán] (1954–2017), paramilitary and informer

O’Callaghan, John Marian [Seán] (1954–2017), paramilitary and informer: 'O’Callaghan, John Marian [Seán] (1954–2017), paramilitary and informer' published on by Oxford University Press.