Retired cop buddy send me a vid, dude walks up to a pack and ship place, wearing hoodie on hot day and no boxes. Pulled a gun on the clerk, customer next to him pulled his ccw out of his shorts, extended his arm, and shot the guy three times, twice in the head. Hoodie kept things nice and clean.
Point is the shooter saw the threat and neturalized it in a span of 6 seconds. That’s how it is done.
That video was featured here. ‘Thinking the location was Brazil.