Yeah I dunno... I'd say justice was probably served here. According the law? Probably not. But domestic abuse is just one of the most unforgivable crimes out there, right next to rape. I don't care what you're on, if you've ever been in a domestic abuse situation you know that the men who do it aren't deserving of much more than a quick death.
Maybe she shoulda gone to the cops. Maybe the cops shoulda killed him.