As so many people have already said the murder of Jo Cox is above all a deep tragedy for her family and friends. I can't (and selfishly, glad I can't) know how awful it must be for them, how much this will affect their lives (especially her young children who will now grow up without her), and they have my deepest sympathies. I hope above all they can find space within the media storm to come to terms with what has happened in their own way.
But I am not counted in that number (from all accounts of who she was, to my significant loss) and it would be dishonest of me to say I feel deeply her loss. I am therefore surprised by how personal her murder has felt, something I can only attribute to the fact that it feels like an attack on my own values. These are the only aspects which I feel any legitimate right to comment on. This is going to be a bit rambly and unstructured. But maybe that's fitting.