Boulder is a very Lefty city.
In all likelihood this was a Leftist home owner.
If so the “what’s good for me is not for thee” modus operandi thing is in full play.
Not all of them.
Considering that the homeowner hit the thug with one shot to the chest and ended him tells me he’s had some training.
The mounted elk head on the wall tells me he’s a hunter.
When I took my CCW class, one of the other students explained that he open carries in Boulder.
There are a LOT of lefties there, but there’s still some good guys.
Update
Not only did the homeowner have a firearm, but so did the next door neighbor.