When First read of their deaths, and what a "pillar of the community" he was and how "Self-effacing and quiet" Clodagh was, I knew that he was a domestic abuser.
No - I'm not psychic, but I have seen it in my own family; and seen the shame and humiliation the victims feel, and seen how they try to test the water for a sympathetic ear, but their tentative comments are met with "Oh - he's such a lovely man (they almost always are). You're so lucky", and "Well, what did you do to upset him?" (If the evidence e.g. bruises can't be denied), and "Oh - that's not like him - he's not himself at the moment."
These responses shut women up. And because the abuser is generally popular and often very influential, they feel they have nowhere to go. I think that the entire family, but especially Clodagh, has suffered years of controlling financial, mental and emotional (and possibly physical)abuse from this arrogant, manipulative man. And this is how it has ended.
RIP, Clodagh. May you and your boys be together in love now. 