A dangerous gangland killer who is suspected of being the hitman in three murders is unlikely to ever face justice after gardai were unable to secure enough evidence against him.
The 31-year-old Coolock man is currently in jail for separate organised crime offences, but the Herald can reveal that he is the chief suspect in the killing of two of his close friends and also for shooting a man dead for cash in 2005.
The inquest into one of his suspected victims was held this week. It heard that David 'Fred' Lynch (26) was shot four times in the head with a 9mm calibre semi-automatic pistol which has never been recovered.
His body was found lying face down on waste ground across the road from the Newtown Court apartments near Belcamp in north Dublin.
Sources said gardai believe that the victim, who was a father-of-three, was killed by the suspect because of a "simple personal row".
"Lynch was involved in multiple feuds with a number of dangerous groupings at the time of his murder," a source said.
The suspected killer, who has more than 100 criminal convictions, is also suspected of threatening to kill gardai.
He remains the chief suspect in the murder of father-of-one Noel Deans in January 2010.
Like Lynch, Deans (27) was also a friend of the killer and his inquest is due to be held next week at Dublin Coroner's Court.
The gangster is understood to have drunk tea with and consoled the heartbroken mother of Deans in a twisted act of treachery after killing him.
A source said: "This individual is a total headcase, a complete loose cannon. The fact that he sat down and drank tea with the mother of that unfortunate man after the murder shows what a cold-hearted evil man he is."
It is believed that the suspect shot Deans over a large cannabis debt he had built up and which he was unable or unwilling to pay.
At the time, a gang war had broken out in the Coolock area between former pals who had taken different sides in a bitter dispute over stolen cash.
Deans, from Greenwood Lawn, Coolock, was gunned down while walking towards a laneway at the Ferrycarrig Road in Priorswood on Saturday, January 16, 2010.
The suspect was arrested over the murder and was also questioned by gardai about the gun murder of Tallaght criminal Mark Byrne (29), who was shot outside Mountjoy Prison in May 2005.
Sources say he masterminded Byrne's murder when the victim was released from jail on temporary release after the two men became involved in a bitter prison row.
The triple-murder suspect was also arrested for the non-fatal shooting of Anthony Ayodeji, who was shot as he held a baby boy in his arms in Darndale in July 2008. He is also suspected of a botched murder attempt on slain Traveller criminal John Paul Joyce the same year.
Meanwhile, this week's inquest heard that David 'Fred' Lynch, of Railway Road, Clongriffin, was found opposite the nearby Clare Hall Shopping Centre in north Dublin on March 30, 2009.
He was aware of previous threats to his life but was not in fear of his life at the time of his death.
"He didn't actually say that, but I knew he was. At that particular time, he wasn't worried - but beforehand he was," his older brother Gerard Lynch told Dublin Coroner's Court.
Christine Smith, Mr Lynch's partner, said she was aware of a threat to his life.
"I always knew there would have been that threat there," she told Coroner Brian Farrell.