THREE people were being questioned tonight in connection with the killing of Shane Rossiter in Co Tipperary on October 17.
The men, aged from their late 20s to early 40s, were the latest in a string of arrests.
Rossiter, who had drug and burglary convictions, became the 14th victim of gun crime this year when he was shot dead in a house just yards from a church in Golden.
Five men and two women were arrested yesterday in connection with the shooting.
Six of them remain in custody. One of the men was released earlier today without charge.
All the arrests were made in Tipperary and those detained were being held in different Garda stations throughout the area.
They can be held for up to three days from their arrest under Section 30 of the Offences Against the State Act 1939.
Rossiter, 30, was shot in a house and rushed to South Tipperary General Hospital in Clonmel, where he was pronounced dead.
His teenage brother Brian died 10 years ago after he fell into a coma in garda custody in their hometown of Clonmel.
The 14-year-old had been arrested for alleged public disorder.
The Rossiter family, including parents Pat and Siobhan, had campaigned tirelessly for an inquiry, which later ruled there was no evidence of an assault on the teen.
A probe into his death, set up in September 2005, found that while his arrest was lawful, his detention was unlawful.
It stated while there was no evidence to suggest an assault in custody, it hit out at the force for not properly investigating all the circumstances surrounding the death and criticised officers for failing to observe certain custody procedures.