I don't know why people think it was an op.
Crazy people do crazy things. Sometimes with guns.
Was it used for political ends? Of course, but that's what you have to attack, not the event itself.
@amerika @LukeAlmighty why is there such a significant number of crazy people shooting up people they have little to no connection with?
Why aren't their more medical malpractice shootings? Predatory business organisation shootings (think Bain capital)? How about political assassinations, even at a very local level where the $$$ for security details are not present.
Why is it almost exclusively people shooting others the don't know, and therefore wouldn't have a grudge against?