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
There's a reason they tell you NOT to use a knife in a self defense scenario. It is nearly impossible to defend especially if you kill the attacker.
I think you statistically have a better chance of getting away with "executioner style" shots with a gun than knife use in self defense.