The vicious killers whose lives have been spent in a cycle of death and violence
Wayne Dundon (36): He doesn't drink, smoke or take drugs – but he is a murderer. Wayne Dundon (36) has been described as a killing machine.
His gang – most of whom are imprisoned – deal in narcotics and firearms and were regarded as the most feared in the country.
An informed source, who has been dealing with the Dundons for more than a decade, this week said that Wayne is "simply categorised".
"He is a ruthless killing machine. That is exactly what he was built for."
Born on March 18, 1978, Wayne is the eldest of four criminal brothers and left school at 16. John and Dessie are convicted murderers, while youngest brother Ger was released from prison earlier this year. His father, Kenneth Dundon, is also a convicted killer.
A self-proclaimed Traveller, Wayne is married to Anne Casey and they have three children. He has 41 criminal convictions recorded here and eight in the UK.
In 2012, Wayne (33) was found guilty of threatening to kill April Collins' brothers, Gareth and Jimmy Junior. April is the former partner of Ger Dundon.
Wayne made the death threats six months after being released from prison for threatening to kill barman Ryan Lee – the adopted son of Steve Collins.
On December 19, 2004, Wayne Dundon dropped off his sister, Annabel (14), to the door of Brannigan's bar in the city. Steve Collins ran the busy pub and Ryan Lee refused Annabel admittance while Wayne unsuccessfully remonstrated.
However, he cocked his fingers in the shape of a gun, pushed it against Lee's face and warned: "F*** you, you're dead." Lee was shot by a gunman wearing a motorcycle helmet later that night.
Wayne Dundon was arrested and he assaulted two detectives in the interview room, leaving one with a broken jaw. He was convicted of threatening to kill Mr Lee.
He was considered to be so violent by UK authorities that he was served with a deportation order following a litany of serious crimes and returned to his parents' home city – Limerick – in 2000.
Shortly after their return to the Hyde Road area of the city, Wayne threw a pillar cap at gardai. One officer – Det Gda Pat Cox – suffered extensive injuries and never returned to work. He was also convicted for threatening to smash a prison officer's face in the public toilets of a Limerick shopping centre. He doesn't smoke, drink or take drugs – and neither does his murdering brother John.
NATHAN KILLEEN (24)
ORIGINALLY from O'Malley Park, Southill, Limerick, Nathan Killeen was integrated into the Dundon gang at an early stage.
In 2006, following the murder of drug dealer 'Fat Frankie' Ryan in Moyross, Killeen was photographed with gang members behind a floral tribute from the Dundon brothers.
Despite his young age, Killeen has 97 criminal convictions. He is serving a five-year sentence for aggravated burglary after breaking into a house in Limerick to extort money.
His mother, Susan Killeen, took her own life while the trial was ongoing. Nathan's twin brother, Gavin, also died tragically. His father, Gavin Devaney from Sligo is dead from a suspected heroin overdose.
Two of Susan's brothers and uncles of Nathan, Eddie and Ray Casey, are well known to the guards and justice system.
At the Central Criminal Court in 2006, Edward Casey, was sentenced to 11 years for the horrific aggravated sexual assault of a 23-year-old woman in Galway on September 30, 2004. The victim was walking through the Loch a' tSaile area of the city when Casey dragged her into a grassy bank and sexually assaulted her.
Ray Casey died in prison while serving a life sentence for the murder of a Limerick barman in 1997. Noel Pyper (48), the barman, was kicked to death in a Limerick laneway by Ray Casey and another man, Anthony Casey (no relation) on August 12, 1997. Ray Casey died after collapsing in the exercise yard of Portlaoise prison.
A cousin of Nathan Killeen and son of Edward Casey, Stephen O'Sullivan is serving a lengthy sentence for the gun killing of Mark Moloney in 2008.
A sister of Nathan Killeen, Ciara is the partner of John Dundon, who is serving a life sentence for the murder of Shane Geoghegan.