The twin sister of Ireland's youngest ever missing person is to meet with the Taoiseach Enda Kenny this afternoon.
Six-year-old Mary Boyle vanished from her grandparent's farm in Cashelard near Ballyshannon on the March 18, 1977.
Ann Doherty believes that her sister was murdered by somebody close to her , because she was going to reveal a terrible secret.
She claims that gardaí have protected her sisters killer and that he remains a danger to other children.
On her way in to Leinster House, Ms Doherty said she wants justice: “I’m just looking forward to the meeting with the Taoiseach, I’m going to speak to him about getting justice for Mary and getting her killer brought to justice.”