The deceased have been named locally as Louise and Mark O’Connor, who were in their 50s, and their son Evan, who was in his 20s. It is not yet clear if all the victims were stabbed, if they died from blunt force trauma, or if the cause of death was the same for all three individuals. However, no firearms were used in the incident.
Sources have indicated that it must have been a sustained and determined attack to kill three adults. The suspected killings are believed to have taken place at or after breakfast time, although what preceded the violence is still under investigation.
Gardaí have emphasized that it is very early in their inquiry, noting that officers first arrived at the scene just before 10 a.m.
The incident occurred at a remote house—a pretty cottage situated in a well-maintained area—in a secluded townland of Drumgowna, near Tallanstown, on the western side of County Louth. The family is well-known in the local community.
Authorities have stated they are not currently looking for anyone else in connection with the case. Sources have described the situation as very raw and tragic.
The suspect, a male in his 30s, is understood to have a diagnosis of a serious psychiatric illness and was taking prescribed medication. Gardaí are examining whether he had been taking his medication in recent days, and if not, whether this could be a contributing factor.
**Garda Statement**
Gardaí continue to investigate all the circumstances surrounding a fatal incident at a residential property in Drumgowna, Tallanstown, Co Louth, which occurred on the morning of Monday, September 29, 2025.
Officers responded to a call shortly before 10 a.m. Upon arrival, three people—a male and a female in their 50s and a male in his 20s—were found deceased at the scene.
A male, aged in his 30s, has been arrested and is currently detained at a station in the Garda northwestern region under Section 4 of the Criminal Justice Act, 1984. This allows for up to 24 hours in custody, excluding any medical consultations or sleep breaks.
The scene is subject to an ongoing forensic examination by the Garda National Technical Bureau. The Offices of the Coroner and the State Pathologist have been notified.
The remains of the deceased have been removed from the scene to Our Lady of Lourdes Hospital, Drogheda, where post-mortem examinations will be conducted tomorrow.
The investigation is being managed from an incident room at Ardee Garda Station, and a senior investigating officer has been appointed. Additionally, a family liaison officer has been assigned to support and keep the family informed.
**Appeal for Information**
An Garda Síochána appeals to anyone with information regarding this incident to contact the Garda Investigation Team by calling Drogheda Garda Station at 041 987 4200, the Garda Confidential Line on 1800 666 111, or any Garda station.
https://www.breakingnews.ie/ireland/three-family-members-killed-in-co-louth-home-named-locally-1812762.html