It was handled the same way most other cities handle public nuisance orders ... they go mow the overgrown lawn. I've seen in it happen in my community many times. The problem is that this guy shot at them.
Man, if the city wants to come and mow my lawn they're welcome to do it.
People who shoot at innocent people and burn their own homes down generally are not mentally healthy. Trust me here. And I'd bet a cup of coffee the city, the HOA and the so-called authorities knew damn well the decedent had an unstable mental condition with a demeanor to match.