If you think there is enough information in this article to draw that conclusion, you are reading into the text. It doesn't have the information you would need to get there. All it says is he was given weapons charges. We don't know why or the nature of the supposed weapon. If he was walking around with the pry bar that he used to open the front door with or whatever, he could easily draw a weapon charge, but that doesn't mean that by using lethal force, the homeowner "likely" avoided having it used against them. The information we have allows for the possibility that it prevented the intruder's weapon use; it doesn't let someone say that did or didn't happen, just that it's possible.