I guess I'll go ahead and be the only person here to say it: it's too bad she didn't remove him permanently from society. Our "justice system" is just going to make him a worse problem and allow him to continue predating on people. It needs to be a normal expectation that entering someone's home with foul intent will likely result in death for the offender.
This isn't because of any idealization of revenge or bloodthirstiness, or membership in the GOP (ha, very much not). I just think the approach to violent or property crime should be effective at protecting the rest of society and a lot less focused on "best punishment." If and when there's effective psychological "corrections" in the corrections system, then sure, call the cops to deal with these kind; until then, do us a favor and remove them.