It's strange for a homeowner --who has been burglarized--would leave his garage partially open.
Who does that and for what purpose?
Maybe to set up an attractive (deadly) nuisance?
Heck--suppose he never left the garage open--those yahoos would have kept on walking by--or hopping by...
Of course the homeowner is going to shoot into his garage--4 times--when he hears noise or sees the guy on his video.
Bad Kaarma to be sure.