Almost three years after losing their son Roy Collins, his parents have left the country under a State witness relocation programme.
Roy Collins was shot to death at the family pub and amusement arcade in Limerick in April 2009.
His family have been under Garda protection since.
His father Stephen told the Sun on Sunday that leaving Roy behind was the hardest thing to do since he was taken away from them.
In 2010, the Central Criminal Court heard that the motive for Roy's murder went back to 2004 when a member of the McCarthy Dundon gang was refused entry to one of Steve Collins' pubs for being underage.