“It looks as though the woman was not close to the cop.”
21 feet is the limit with a knife.
21 feet if a man is holding the knife and might come at you. The officer was not threatened.
I base this below on the video.
In this case it appears the LEO fired quickly to save the male. LEO observed a female with one hand on a male, and the other hand holding a large knife. Even if the female called and said she was being abused, LEO only sees female with large knife, while holding a male. And LEO probably has no idea who was who at the time shots were fired.
Bottom line, LEO is going to protect someone from being stabbed, shot etc. LEO had no idea if she was going to put that knife into the male’s chest and LEO can’t allow that to happen.
This is an unfortunate incident. Clearly the female did not know enough to immediately drop the knife when they gained entry and she saw them.
In this incident I believe LEO fired on the female not protect himself, but to protect the male from the knife wielding female.