In my office there's a set of passport-sized photos of a man no one knows. I share the office with four other specialists and not one of us has a clue who the bald headed guy is. But we like the photos. Even in a recent office move we've kept them when other materials were quickly tossed away.
Today he is a reminder to us that someone, equally unknown, has just murdered hundreds of people. In fact not people but children, in the biggest mass school mascre ever wrought in the United Kingdom.