Of course it is.
Violence, by a crazy person, to send a political/religious message, to make people afraid, is, by definition, Terrorism. The POTUS should say it, CNN should say it, FOX, CBS, NBC, ABC too.
We should say it.
I've been saying it. And those I say it to just get quiet and change the topic.
I've shopped in this area of Colorado Springs. My mother shops at this shopping center.
Sorry for my language, but come on, fucking crazy assholes should not have guns.