Jack Kiernan

– author, historian, investigator –

You have reached the website of Jack Kiernan, author, historian, investigator who specialises in cold cases, unsolved murders and alleged miscarriages of justice.

In I Declare Before My God: The Brian and James Seery Story, Jack Kiernan describes circumstances which led to the murder by execution of two innocent men (a father and a son), victims of miscarriage of justice. Their deaths occurred on different days, 24 years apart on separate continents. Brian Seery died in Ireland, outside Mullingar Gaol on 13 February 1846. He left behind a young family including a son, James, who would later be charged, found guilty of murder and sentenced to hang in Australia, on 14 November 1870, aged just 33 years. Further information ...

Why Did They Lie? (published 2018) is an account of the Irish Civil War, the truth, where and when it began. It is a book that uncovers shadowy events that took place during the Irish Civil War (1922-23), shedding important light on a dark chapter in Irish history, offering an assessment that also challenges certain assumptions about the course of events, the personalities and leadership dynamics involved. Further information ...

Jack Kiernan is also the author of Is It Me? The Joseph Heffernan Story (published 2014), investigating the murder of Mary Walker, on a hot summers day in Mullingar in 1909. It was a crime that shocked the nation and Joseph Heffernan, who was tried and convicted, paid for it with his life – the last person to be hung in Dublin’s Kilmainham Gaol. However, rumours have persisted, down through the years, that he may have been innocent. Further information ...

Jack Kiernan has also written biographies of Mullingar boxers, Chris Cole and Eddie "The Killer" Byrne, which will shortly be available to buy online. Further information ...

Jack Kiernan's books are published by The Manuscript Publisher and are available to buy online (including from this website) as well as in certain bookshops.