Seemingly not a bad guy, and not in a bad area. Without more information I can accept the ‘stray bullet’ idea; a sharp-eyed friend had a collection of about a dozen bullets he had picked up while walking to work back in the ‘80s, and there has been a long-standing (if intermittent) practice of celebrating by shooting into the sky, like it’s Baghdad on the Mississippi.
I am super glad the local ‘billies seemingly stopped the celebratory shooting of clouds, years ago.