Mom would've gotten arrested.
There's a reason George Soros bought district attorneys all across the nation. What used to be lawful self-defense is now a crime.
Other than the city of Filthydelphia, the state of PA is friendly to concealed carriers and we have the 'castle doctrine' in PA.
The castle doctrine says your home travels with your body, and you have the right to protect yourself...anywhere and you have no obligation to retreat.
Always remember this statement, "I feared for my life, and I want my lawyer"...PERIOD AND STFU.