GARDAÍ AND the family of Raonaid Murray have pleaded for new information from the public on the 21st anniversary of the teenager's death.
17-year-old Raonaid was last seen alive at around 11.20pm on Friday, 3 September 1999 as she made her way home through Dun Laoghaire town centre in Dublin.
Her lifeless body was found just over an hour later at 12.33am in Silchester Crescenet, Glenageary on Saturday, 4 September.
She was just 500 yards from home.
Each year, Raonaid's family and the Gardaí issue an appeal for information regarding her murder, and this year, on the 21st anniversary of her death, Gardaí urged anyone who may now something to look at their own children.
"Many who were then Raonaid’s age are now parents themselves with children, some of whom would now be close to Raonaid’s age," Gardaí issued in a statement.
"And we would ask them to reflect now with the benefit of maturity and hindsight on any information which may be of assistance to the investigation.
"Despite a large number of suspects having been identified during the course of this investigation, there is in reality no prime suspect. The lack of a prime suspect largely arises from the fact that there has been no motive identified in this case. In over 4500 witness statements there is not one word of enmity towards Raonaid.
"If any person has any information which could assist in identifying a motive for the murder of Raonaid and/or if any person has any doubts about the truth of an alibi already provided, we would appeal for your immediate assistance.
"You may unknowingly be shielding a killer."
An Garda Síochána say that solving this cold case is of "the utmost priority" and pledged that any information received will be treated with "absolute confidentiality".
They went on to thank everyone who has provided information or a witness statement throughout the 21 years of the investigation.
Anyone who believes they may have information relevant to the investigation is urged to contact Gardaí in Dun Laoghaire on 01 666 5000, the Garda Confidential Line on 1800 666 111 or any Garda Station.