From what I understand (and I realize that more will come out over time), she was shot while actively trying to breach into a room that she knew she was not authorized to enter and which was secured and defended by armed police.

At some point, an element of “what did they think would or should happen?” has to be considered.

I agree -- and the same thought should occur to someone punching a police officer during an arrest, or grabbing the officer's gun, running away, etc., right?

It seems that usually when those things happen, however, that itself is cause for riots.

Yes with an asterisk. I put punching a police officer or grabbing for their gun into a very different category than running away. In my worldview, the first two, standing alone, subject you to lawful use of force, including deadly force if necessary. The last subjects you to being chased but not to the lawful use of deadly force merely as a result of running away.

You don't think that the US government should be able to defend itself? That's an interesting opinion.