This is an excellent and thought-provoking article from Greg Ellifritz at Tactical Response Training.
Yes, the video he is discussing is an older one that has made the rounds already. That does not change the quality of the article of the thoughtful questions and responses.
I’m largely in agreement with Greg’s responses. One of the most shocking things in the video, to me, is the fellow on the bicycle that just stares at the victim until she collapses… then apparently leaves.
Encountering this sort of scenario is hugely more likely that an Active Shooter situation. I don’t need to know how you might react to such a scenario… but you do. Think about it.