Who said it was an AR? You judge prematurely. It may have been rat shot in a ruger 10-22 for all you know. And how do you know what his line of fire was? I swear, some people just like to argue for the sake of argument.
After reading another article on this, they had found the ARs and mags when they searched his house - which is what they do in Blue-states when you violate a common-type of law like discharging a firearm in a populated area.
I don't agree with Konnecticut's firearms laws, (I will not comply), but I do understand my environment.
You won't find me discharging a firearm unlawfully until the SHTF....