>But, how can you morally justify potentially dozens, or even one good person giving up their lives for the sake of an evil person? <
The woman in this news article was not herself, was known to the store and was not “evil”.
This individual was ill. I’m sorry you don’t understand people’s outrage that she was shot to death, as opposed to being overwhelmed and subdued.
That's great that you think that LEOs are Supermen, but we're not. We're normal humans just like you are.
You have two LEOs attempting to subdue an insane person with a knife. The tazer (UFC 1,2,3 and 4 exhausted) there are not only members of the public, but two LEOs facing possible death. What do you suggest they do?