The public is being urged to remember what the father of a murder victim has done for Irish society since his son's death.
It is nearly three years since Roy Collins was shot dead in Limerick.
It has now emerged that his parents and family have left the country to start a new life under a witness relocation programme.
The Collins family had been under continual Garda protection since 2009.
Former Limerick Mayor and friend of the family John Gilligan said Roy's dad Steve Collins made a huge impact.
Mr Gilligan said: "Since Roy Collins and the stance that he has taken, most of these gangs have been dismantled, the people who led these gangs are either dead or in prison and those who are not in prison are heading for prison.
"So even though that this man has left, you must never, ever forget the huge contribution he has made for society."