Gardai investigating the fatal shooting of Darren McGrath in the border town of Belturbet in Co Cavan arrested two men and a woman last night.
Darren McGrath (31), who was originally from the Mahon area of Co Cork, was shot dead as he lay in bed by a lone gunman at about 5am at a house in the Kilconny Estate in the town on May 20th.
Gardaí said Mr McGrath's partner was in the room at the time of the shooting and that the couple's 13-month-old baby was sleeping in another bedroom.
Neither was physically harmed in the attack.
A male in his 40's and a female in her 20's are being detained at Monaghan Garda Station and another male in his 20's is being detained at Castleblaney Garda Station.
All three are being detained under Section 30 Of The Offences Against the State Act.