The Court of Appeal has upheld Barry Doyle's conviction for the murder of Garryowen rugby player Shane Geoghegan.
The father of three from Portland Row in Dublin was jailed in 2012 having shot the wrong man in a gun attack at Dooradoyle in Limerick in November 2008.
Mr Doyle's lawyers raised 27 grounds of appeal – many centred around his confession while in garda custody that he had shot Shane Geoghegan.
It was submitted that Gardaí induced him to make admissions by promising to release his former partner Victoria Gunnery who had been arrested for withholding information.
The Court of Appeal has found there was no threat or inducement – and they laid weight on the fact that his confession came after a consultation with his solicitor.
They have found that Barry Doyle knew what he was doing.
He is not the only person serving life for the murder - in 2013 the Special Criminal Court convicted Limerick gang figure John Dundon on accomplice evidence that he had ordered Barry Doyle to carry out the shooting.
Shane Geoghegan was not the intended target, but he was gunned down metres from his home.