Editing Sean O'Callaghan (section)

==Post-IRA life==
In 1998 O'Callaghan published an autobiographical account of his experiences in Irish Republican paramilitarism, entitled ''The Informer: The True Life Story of One Man's War on Terrorism'' (1998). In the book's text he stated (shortly before the death of [[Eamon Collins]], another former IRA member who had prominently turned upon the organisation):

<blockquote>I know that the organisation led by [[Gerry Adams]] and [[Martin McGuinness]] would like to murder me. I know that that organisation will go on murdering other people until they are finally defeated. It is my belief that in spite of IRA/Sinn Féin's strategic cunning, and no matter how many people they kill, the people of the Irish Republic expect, because they have been told so by [[John Hume]], that there will be peace. There may come a time when their patience runs out. If that were to happen there would be no place for IRA/Sinn Féin to hide. We must work tirelessly to bring that day forward.<ref>O'Callaghan (1998), p. 316.</ref></blockquote>

In 2002 he was admitted to The Nightingale Hospital, Marylebone, an addiction and rehab center where he underwent a rehabilitation program for alcohol dependency. His identity and past activities were not revealed to the other patients.
O'Callaghan lived relatively openly in London for the rest of his life, having refused to adopt a new identity. He was befriended in the city by the Irish writer [[Ruth Dudley Edwards]], and worked as a security consultant, and also occasional advisor to the [[Ulster Unionist Party]] on how to handle [[Irish Republicanism]] in general, and [[Sinn Féin]] in particular.<ref>{{cite web |title=Ex-informer defends RUC against critics |work=Newsletter |location=Belfast |date=25 January 2007 |url=http://www.newsletter.co.uk/news/local/ex_informer_defends_ruc_against_critics_1_1842337 }}</ref>

In 2006, O'Callaghan appeared in a London court with regard to an aggravated robbery that had occurred in which he was the victim.<ref>{{cite news|last=Dudley-Edwards|first=Ruth|author-link=Ruth Dudley Edwards|url=https://www.independent.ie/irish-news/revealed-the-naked-truth-about-me-the-ira-whistleblower-and-the-gay-bondage-orgy--26415826.html|title=Revealed, the naked truth about me, the IRA whistle-blower & the gay bondage orgy|work=The Independent|location=Eire|date=27 August 2006}}</ref>

In 2015 O'Callaghan published ''James Connolly: My Search for the Man, the Myth & his Legacy'' (2015), a book containing a critique of the early 20th century Irish revolutionary [[James Connolly]], and what O'Callaghan considered to be his destructive legacy in Ireland's contemporary politics.<ref>{{cite news |title=Sean O'Callaghan, how I lost my faith in James Connolly |work=Irish Times |date=25 November 2015 |url=https://www.irishtimes.com/culture/books/sean-o-callaghan-how-i-lost-my-faith-in-james-connolly-1.2443428 }}</ref>