Note that I'm not necessarily opposed to her facing consequences for killing him -- my issue is with how gleefully NYPost is framing it as if she just attacked him out of the blue and shoehorning her into the "evil transgenders" stereotype
You are not required to brandish a weapon because this isn't a thing you should do outside of a movie. Waving around your gun means someone takes it from you.
This is even more laughable with a knife.