What happened
Seventeen-year-old Raonaid Murray was stabbed to death near her home in Dún Laoghaire in 1999 after walking home from an evening out.
The investigation
Gardaí interviewed large numbers of people, reviewed possible witnesses and later subjected the investigation to cold-case examination, but the weapon and killer have not been identified publicly.
What the courts or investigators concluded
No one has been convicted and police continue to appeal for information.
Why the case remains significant
The murder remains one of Ireland’s best-known unsolved cases because it occurred close to the victim’s home yet produced no definitive suspect despite years of publicity.
Case context
Crime by Region organizes cases geographically so readers can move from one file to other investigations from the same country. For unresolved or contested cases, the wording above reflects the distinction between confirmed events, investigative theories and findings actually established in court.