Perspective is critical

Ace:

This fact in particular just leaped off the page at me ("literally" as gun-grabbing Joe Biden might say):

Typically, the immediate deployment of law enforcement is required to stop the shooting and mitigate further harm to victims. Typically, active shooter situations are over within 10 to 15 minutes.

Let me rephrase that for you: "Typically, victims are sitting ducks for the 10-15 minutes it takes law enforcement to arrive."