[I kinda wonder what military or law enforcement agency teaches that
when you pull your weapon, it is to kill?]

When I was in basic training, 54 years ago, at Ft. Ord, the Bayonet Assault Course instructor would yell, "What is the sprit of the Bayonet?" We were required to yell back, in unison, "To Kill". Maybe things have changed in a half Century.

Best,
Rick