A 33-year-old criminal was shot in the leg in his own home yesterday as part of a "deeply personal dispute".
Notorious criminal Michael Brennan was recovering from his injuries in hospital last night after being shot at 2pm in the house in Cromcastle Drive, Kilmore, north Dublin.
A young man who was arrested near the scene shortly afterwards was quickly released from Ballymun Garda Station when detectives were satisfied he had no involvement in the shooting.
Brennan was targeted in a downstairs room of the house by a lone gunman in what senior sources say was "more than likely a punishment attack or a warning".
"Brennan is a criminal who is extremely well-known to gardaí, but he is not suspected of being involved in the wider gangland disputes in that locality," a senior source added.
"Instead, gardaí are working on the theory he has been involved in a row with someone who is very well-known to him and that yesterday's incident was not an attempt to murder him in his own home."
There have been no further arrests following the attack, which is being investigated by Santry gardaí.
They appealed to the public yesterday for information about the attack.
"A man in his 30s was injured in the shooting and was removed by ambulance to Beaumont Hospital where his injuries are described as non-life-threatening," a Garda spokesman said.
Brennan is the younger brother of John Paul Brennan (40), who has survived a number of attempts on his life, including when he was cornered in his girlfriend's home in Kinsealy and shot in the leg and neck in 2009.
Both brothers were previously closely linked to major drugs trafficker Paul 'Burger' Walsh (37), from Baldoyle, who made a major settlement with the Criminal Assets Bureau in 2007.
Yesterday's victim was jailed for 10 years in March 2010 for attempting to murder another man over a €200 drug debt.
Brennan was convicted by a jury in 2009 of the attempted murder of James Egan and of possession of a sawn-off shotgun. The jury heard that he was a teenager when he went to Mr Egan's home and carried out the shooting on April 29, 2006.