He was also quite likely former military (demeanor, posture, verbiage), and in a jurisdiction that respects the Constitutionally protected right to defend yourself.
Contrast those facts with other situations.
For reasons you mentioned, guy was definitely former military.
Sadly, I live in the late great State of FL. Perp's here have more rights than we do these days. You'd have to have a knife at your throat, gun to your head, or be shot at point blank to keep from a lengthy lawyer fest.
Although still Constitutional, Life threatening defense of you and yours and property protection doesn't mean much these days. Just shallow gun-clinging words to the Libs.