There appear to be some assumptions, because there was a young girl, that the guy was likely having medical/mental problems and should be pitied. It reminds us of our responsibilities to protect older loved ones. If your loved one is currently lucid, now may be the time to discuss with them what to do with firearms in the days to come.
On the flip side, this may be an unreasonably mean person. They are out there, folks. Angry and mean spirited. I worked with one such guy for about six years before he retired. Couple of years later guy shot his wife, called the cops and told them what he’d done, then shot himself before they could get there to intervene.
If the guy in the lead story is one of the nasty mean types, instead of senile, mental, emotional, etc., then I would hope something can be done to mitigate the danger he poses to others.
Question: If you were the insurance adjuster or dad in this story, how would you retreat from the gun wielding old guy? Back away? Turn away from him? Slow and easy or rapidly?