Gardaí have arrested a man in his 20s and a woman in her 30s in connection with the murder of Philip and Kim English and their two sons in Waterford. The suspects were detained under criminal organization laws following a significant step-up in the investigation, which includes armed searches and a focus on drug-related activity. While the surviving children remain in critical condition, police are continuing to appeal for public information and dashcam footage. The episode also covers the legal limits on suspect detention and announces funeral arrangements for the victims.