Three men that were being questioned about the shooting of Robert Delaney in the Dublin suburb of Tallaght in 2008 have been released.
They were released without charge and a file will be sent to the Director of Public Prosecutions.
The three men, who are aged 20, 24 and 31, were arrested by detectives from Tallaght in a series of early morning raids today.
Two of them were arrested in their homes in Finglas, while the third was arrested at his home in Tallaght.
They were being held on suspicion of possession of firearms.
On 22 October 2008, Mr Delaney was asleep with his partner when there was a knock on his front door. He looked out the bedroom window and was shot in the head.
He was seriously injured and remains in hospital. His family says he remains unresponsive.
