I think this is not too surprising? Both the result and the action of hiding it? From my understanding, right-wing usually means more pro-gun. If you already have guns, the threshold for terrorist actions is likely lower.
I don't think we should normalize cover ups like this especially when it comes to political violence studies. POTUS immediately blamed the "radical left" after the attack without evidence. Not only is that reckless, it's not even the most likely scenario.
> If you already have guns, the threshold for terrorist actions is likely lower
Guns are easily accessible to everyone in America.