Crime journalist Paul Williams' new book will shed new information on convicted murderer Graham Dwyer.
The book, entitled 'Almost The Perfect Murder - The killing of Elaine O'Hara, the extraordinary Garda investigation and the trial that stunned the nation', is published by Penguin Books and will be available this week.
The book, which promises to be "the only complete inside account", details the exhaustive investigation that allowed gardai to build a case against married father-of-three Dwyer (42).
The Foxrock architect was found guilty of murdering childcare worker Elaine O'Hara (36) in the foothills of the Dublin mountains. A jury of seven men and five women found him guilty after a two month trial.
Elaine was last seen in August 2012.
Her remains were discovered in September 2013.
The book documents the dramatic trial of Dwyer. Courtroom reporters Andrew Phelan and Sarah Stack, who attended every day of the trial while covering for the 'Irish Independent', the 'Herald' and independent.ie, provided assistance to Williams.
The 'Irish Independent' journalist 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.