Violence and death was needed to support the roll-out of a narrative. The gunman was clearly ordered by a higher-up to supply what the lame “insurrectionists” were lamely not supplying on their own. You should not be as sanguine as you appear to be about nothing blameworthy or sinister presumably having happened. At least not without learning and processing a whole lot more information than has been officially provided.
I guess I don't have your sources of information. By my way of thinking this is just an officer using deadly force where it wasn't warranted. And getting away with it. If this was some guy ordered to produce a body, why only one? Wouldn't half a dozen or more make more of a statement for Pelosi or McCarthy or whoever?