Overview

• The deceased were named locally as Louise and Mark O’Connor, both in their 50s, and their son Evan, who was in his 20s.
• A care worker raised the alarm after finding Mark at the front gate, Evan beside the house, and Louise upstairs inside the property.
• Gardaí arrested a man in his 30s known to the family, who is detained under Section 4 at a station in the Garda North West Region.
• Officials say they are not seeking anyone else in connection with the case and report no ongoing threat to the public in Co Louth.
• The scene is preserved for forensic work as the Coroner and State Pathologist proceed, with post-mortems due Tuesday and appeals issued for witnesses or dash-cam footage.