Fantastic news that they caught the bastard. I suspect that will be one of many times his pants will be falling down.
With regards to home defence, (in NJ at least) the law is such that had she possessed a gun, and shot him without first;
1. Warning him that he is trespassing.
2. Attempting to retreat, for example to another locked room. (Bathroom, closet, etc,.)
She would be the one going to prison.
New Jersey Self Defense Law
Countless cases do show that even if you are acquitted in criminal court, you are still open to civil lawsuits.