The following monument was erected outside the old graveyard in Killester, Dublin. It commemorates an IRA man, shot by Free State troops during the Civil War.
I found more information on the murder on the irishmedals.org site:
On the 22nd of September 1922 the body of Anti-Treaty Volunteer Michael Neville, a native of Lisdoonvarna County Clare, was found in a disused graveyard in Killester County Dublin. He was a member of the Dublin City Brigade and had been killed while in the custody of the Criminal Investigation Department (C.I.D.) of the Civic Guard in Oriel House. The C.I.D. were better known as the Oriel House Gang. Three men entered Mooney’s Public House Eden Quay Dublin and abducted the barman Michael Nevill aged 23. Mooney’s body was found the next day in a disused graveyard in Killester . Witnesses told the inquest that three men had entered the public house and ‘arrested’ Nevill, witnesses for the Civic Guard told the inquest that no one connected with the Civic Guard had anything to do with the shooting and Nevill was not arrested by them. Doctor G. Meldon told the inquest he found a number of bullet wounds on the victim including lacerations to the lungs, liver and brain and the victim also had a fractured skull, death was due to shock and haemorrhage.