I remember an episode of “Dragnet,” in which a man had been killed by a 9mm. Sgt, Friday said “Well, we’re looking for a Luger or a Browning.”
That came to a crashing halt not long after. As Vietnam dragged on, increasing numbers of Americans became exposed to the modern 9mm autoloader, and Americans started buying them at home.
And then this happened.
https://en.wikipedia.org/wiki/Newhall_incident