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
Imma be honest: if you reload after dumping the first mag into someone, it's getting into manslaughter territory.
Self defense is also (at least in Germany, don't know how it's handled in the Land of the Castle Doctrine) about a measured response. Using a weapon after feeling your life is in danger: A-okay. Bashing someone's skull in repeatedly after they stopped being a threat: not so okay. The police shooting an attacker three times in the chest: A-okay. Dumping two mags into someone: definitely not okay.