I actually have very few thoughts, since I have been out of touch with most coverage,swamped on the show floor of the convention, and only catching small snatches on the TV in the Press Room. I really don't know much about who was killed or the apparent motivation. Only what little scrolled across the screen. So, any comments might be totally out of line with what the news actually is. Or not.
My initial thought was the same as everyone’s – how heart-sickening and sad. And political attacks on freedom of expression (which I'm assuming is part of this) make it all the more tragic.
My second thought was that for all the understandable non-stop outrage, this kind of “terror” attack doesn’t strike me as much more horrific as when someone (who is as much a terrorist, but on a different level) who goes in and shoots up a school of children, or movie theater or college campus.
People who are rightly outraged and want “action” against terrorist should (to me) be as outraged about all these other kinds of attacks. They might not be political, but that makes little difference to the massive number of people who are dead.