A female assassin who has pleaded guilty to the murder of a van driver was part of a terrorist hit team planning to kill six members of a rival faction.
The hit list was drawn up after an internal row split the Continuity IRA and resulted in a deadly feud.
The plot was revealed last night after 50-year-old mother Rose Lynch admitted her role in the fatal shooting of innocent van driver, David Darcy, after her accomplices mistakenly linked him to the rival group.
Mr Darcy, a father of two, was shot by two attackers as he was about to reverse his van out of the driveway of his house at Cherry Orchard Avenue in west Dublin to drive to work on the morning of November 28, 2011.
Blonde-haired Lynch was one of his two killers.
Her accomplice, a senior Continuity IRA (CIRA) member from west Dublin, has not been charged in connection with the murder.
The two of them were described by gardai in evidence given in a court bail application as members of a CIRA "active service unit" that intended to murder a total of six people they believed to be linked to a rival faction of the organisation.
Anti-terrorist officers suspect that members of the hit team, and their bosses, feared their rivals would attempt to overthrow them and attack some of their associates. They decided to "get their retaliation in first", one senior officer told the Irish Independent.
But while determining their targets, they mistakenly identified Mr Darcy as being involved in an earlier shooting and listed him for attack.
'My daughter is a good Republican - I'm proud of her'
By Louise Hogan and Brian Kavanagh
The father of a female assassin has told how he will stand by his daughter, after she pleaded guilty at the Special Criminal Court to murdering a father of two in his driveway.
Rose Lynch (50) gave a clenched fist salute and exclaimed: "Mna na hEireann, tiocfaidh ar la" as she was led into custody after unexpectedly pleading guilty to the murder of delivery driver David Darcy (39) on the day her trial was due to begin.
The call was returned by shouts of "you should be ashamed of yourself" and "scumbag" from the public gallery.
Speaking after the brief hearing at the Special Criminal Court in Dublin, her father, the head of one faction of Republican Sinn Fein, Joe Lynch (72), said his daughter was a "great woman" and a "Republican".
"I support my daughter and I'm the proudest man today as I was the day she came into the world," the Limerick man said, adding the whole family was behind her. "She is a very strong woman and she brings her strength from her commitment to the Republican movement."
Republican Sinn Fein is regarded by gardai as the political wing of the Continuity IRA -- a claim it denies.
Mr Lynch said his daughter had pleaded guilty as she "would not deny her membership of the Irish Republic Army. For to deny membership of the Republican Army, she felt she would be doing a dishonour to the volunteers who died on hunger strike."
Mr Lynch said: "I'm very proud of my daughter. My daughter was born into a Republican family, my daughter joined Fianna Eireann at the age of five.
"She sold the Republican newspaper in Limerick city openly on the streets; when she became of age, she joined Cumann na mBan.
"Then she became a volunteer for the Irish Republican Army. Anything the Irish Republican Army asked her to do, she done like any Republican would."
Mr Lynch said: "As far as I'm concerned, as long as there are British soldiers in this country, there'll be people like my daughter."