As he was convicted for murdering a member of the Garda Siochana who had the temerity to try and stop him committing a crime, it shouldn't come as a huge surprise that he may resort to using his fists on someone who displeases him somehow.So its ok then?
And no it is not ok, but he should have been made serve that mandatory 40 year stretch and today they probably would still be prison sweethearts with your one mouthing off in the Dail above perceived injustices meted out to her sweet hubby inside