Summary: I would be more forgiving of this book if there had been more about Bridie and Donal in it.
I worked with a lot of Irish nurses in Ethiopia and Angola. They were a tough, sexy bunch, ruthlessly professional and deeply committed to social justice. (The character of Sophia in my novels The Undiscovered Country and Some Service to the State was modeled in no small part on some of them.)
As a professional group, certainly as an Irish professional group, they have probably done more than any others to make the world a better place.
I imagine Bridie Gargan must have been quite like them. A 27 year old in 1982 she was already making the world a better place working as a nurse. Having just finished a long shift one day she decided to reward herself on her way home with a spot of sunbathing in Dublin’s Phoenix Park. It was there she had the misfortune of encountering Malcolm Macarthur, who proceeded to beat her to death with a hammer.
After Bridie, Macarthur went on to kill Donal Dunne, a farmer, with his own shotgun. It seems that these killings were part of a half-baked plan that he had to commit an armed robbery to replenish his finances after he had squandered an inheritance. Macarthur was such a wastrel that he simply could not contemplate working for a living.
Having finished it, I am left with very mixed feelings about A Thread of Violence, Mark O’Connell’s account of a protracted series of meetings that he had with Macarthur following his release on licence for the murders of Bridie and Donal. O’Connell had set himself the task of trying to get to the bottom of what motivated Macarthur to such grotesque violence.

It is a beautifully written book, and it is important, I believe, to try to understand violence to better prevent it. But in the end O’Connell adds little illumination to these dreadful events and he admits that he never did get to the bottom of the question of motivation.
So, what justifies this literary treatment of Macarthur, a worthless man who has led a worse than worthless life? I am left feeling not much, particularly as O’Connell writes so little about Bridie and Donal who barely feature in this book other than as victims. O’Connell missed the opportunity, in my view, to show how these much more consequential people deserve more attention than their self-important killer.
I can understand how O’Connell, as a working writer doubtless with a contract to fulfil, must have felt he had to write something in spite of his admitted failure to achieve his aim. But I am sad to say that I do not think this book adds much to human understanding.

