Making a self-defense story fit the desired narrative
Moore, Oklahoma. Business fires violent nut case, he rams vehicle into headquarters, charges inside with knife, decapitates one woman, begins stabbing another...
An employee ends the assault (and almost certainly intended mass killing) with three fast shots from a rifle... given the setting, certainly a semi auto, and likely a dreaded "assault rifle." Employee is a reserve deputy (depending upon the jurisdiction, anything from a friend of the sheriff to a member of the "unorganized militia," an armed civilian who is available for public service if called upon).
So intended mass murderer uses a knife, defender stops it with gun and likely a terrible "assault weapon." How to make this fit the desired narrative?
CNN refers to the defender as a "coworker" who is "also an Oklahoma County reserve deputy." No mention of the firearm used.
A television station that runs the CNN story says "a sheriff's deputy shot Nolen."
Even Fox refers to the defender as an "off duty officer," while noting that he used a rifle.
I have yet to find a media account that describes the rifle (to be fair, that info may not yet be available, but I rather doubt we'll hear it later, either).