A new book on murderer Graham Dwyer will be published this weekend.
The book, entitled 'Almost the Perfect Murder', and authored by crime journalist Paul Williams will be serialised in the Irish Independent, Sunday Independent and independent.ie.
The book looks at the exhaustive garda investigation which identified architect and married father of three Graham Dwyer (43) as the murderer of childcare worker Elaine O'Hara (36).
Elaine was last seen in August 2012.
Her body was discovered in the foothills of the Dublin mountains in September 2013.
Dwyer, formerly of Kerrymount Close, Foxrock, was found guilty of her murder after a 42 day trial in March.
One aspect Williams' book examines is Dwyer as 'Mr Average'.
Successful in his career and married to fellow architect Gemma Dwyer, he was the father of three children, two with Gemma and one from a previous relationship.
Outwardly Dwyer gave the impression of being a loving family man, with an interest in cars and model aeroplanes. His wife and family had no idea of the secrets Dwyer hid from them.
'Irish Independent' journalist Paul Williams is also promising readers "startling new material based on extensive research conducted specifically for this book".
This is Williams' tenth book - his other works include 'Murder Inc' on the Dundon McCarthy gang in Limerick, 'Badfellas', 'Crime Wars' and 'The General'.
News of Williams' book comes just days after comments made by State Pathologist Dr Marie Cassidy on the trial of Graham Dwyer.
Speaking to medical students and staff the University of Limerick, Dr Cassidy expressed surprise that Dwyer was found guilty due to a lack of "pathological evidence".
Dr Cassidy, who along with her colleagues, examined the remains of Ms O'Hara, described the case as "fascinating" when she was asked for her medical opinion.
"We knew there was no pathology evidence to support anything so it came to what other evidence did they have.... it's up to them to make a case and to present this case, and if they think the case to going to stand up in court, then the DPP will go ahead with it," she said on Friday.
"In that case, I thought: 'No, they will not go ahead with it....' And then, when we were waiting for the verdict coming in, I said, it has to be not guilty."
Dwyer has lodged an appeal against his conviction for the murder of Ms O'Hara.
He was jailed for life after a jury found him guilty of murdering Ms O'Hara in the Dublin Mountains on August 22, 2012. Her partial and decomposed remains were found more than a year later and no cause of death could be ascertained.
Almost the Perfect Murder will be serialised next Saturday and Sunday in the Irish Independent and Sunday Independent. Independent.ie readers can now pre-order a signed copy of the book with free delivery for €19.99.