LAS VEGAS, NV – A Las Vegas woman called 9-1-1 to report a break in at her home. Dispatchers could hear the sound of glass breaking over the phone. [...] She was armed with a handgun. Her ex saw that she was armed and left, only to return a few minutes later with a gun of his own. Once again, he entered the home uninvited and threatened the new current boyfriend, holding his gun to his head.It was at that moment that the homeowner fired a single shot at her ex-boyfriend, striking and killing him.