The Secret Serial Killer

The True Story of Kieran Kelly

Robert Mulhern

Robert Mulhern spent three years investigating claims that Kieran Kelly, a two-time convicted killer, murdered many others. In 1983 Kelly confessed to dozens of unreported and unsolved murders. Detectives believed they had found a prolific serial killer, yet this escaped public scrutiny for decades.
Date Published :
July 2019
Publisher :
Pen and Sword
Illustration :
16 black and white illustrations
Format Available    QuantityPrice
ISBN : 9781526722768
Pages : 200
Dimensions : 9.25 X 6 inches
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On the evening of August 21,1983, Metropolitan Police detectives raced to the cells of London’s Clapham Police Station to find a prisoner dead and his cellmate sat cross-legged and quiet in the corner.

Kieran Kelly, a laborer from Ireland, quickly confessed to strangling the prisoner – and then stunned officers by confessing to dozens of unreported and unsolved murders over the previous 30 years.

Detectives believed they were in the presence of Britain’s most prolific serial killer yet Kelly was convicted on just two of his admissions and his story went unnoticed until 2015, when a former police officer who worked on the case claimed the killer’s crimes were covered up by the British Government.

Strangulations, murders on the London Underground, an internal Metropolitan Police review – as the story’s elements whipped the international news media into a frenzy, journalist Robert Mulhern set off on a methodical search for the truth against the backdrop of an ever-increasing body count.

Could Kieran Kelly really have murdered 31 times?

About The Author

Robert Mulhern is a multi-award winning journalist.He has worked as a reporter and editor for the BBC, Sky and The Irish Post, after graduating from local papers. He is currently contracted to RTÉ Radio 1’s Documentary on One series in Ireland. Mulhern is a three-time World Radio award winner at the New York International Festivals, a previous Celtic Media award winner and his work has been short-listed for Amnesty International Media awards.He lives in London with his wife and daughter.


“Mulhern’s meticulous investigation reveals that Kelly initially committed petty crimes, was tried and acquitted of earlier murders, and confessed more than once to many other murders. Was Kelly gay and killed his first victim because he was afraid of being outed? Was he a normal man who drank too much? Or was he a monster? Mulhern uncovers a Jekyll and Hyde personality along with a host of missing and inaccurate police files.”

- Publishers Weekly

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