A 25-year-old man was the getaway driver of the car used in the feud murder of Daithi Douglas in Dublin three-and-a-half years ago, the Special Criminal Court has heard.
Gareth Brophy, from Reuben Walk in Dublin 8, pleaded guilty to helping a criminal gang carry out the murder.
The father-of-one is the third person to be convicted in relation to the offence.
Gang leader Freddie Thompson is currently serving life in prison for the murder.
Brophy admitted helping a criminal gang murder Mr Douglas at his wife's shop on Bridgefoot Street in Dublin.
A gunman walked in and shot the 55-year-old six times as he took a meal break at the counter of 'Shoestown' on 1July 2016.
Mr Douglas's daughter rushed to his aid, but he was pronounced dead in hospital within the hour.
He was shot dead as part of the ongoing Hutch-Kinahan feud, which has cost 18 lives.
The gunman arrived at and left the scene in a stolen Mercedes, which was later burned out, before he and the getaway driver transferred to a stolen Suzuki Swift.
The Special Criminal Court heard that Brophy was identified as the driver of the getaway car.
His DNA and a palm print were found in the Suzuki and he was caught on CCTV as that car drove across the Merrion Gates.
Mr Justice Paul Coffey said the court will sentence Brophy next month.