Shoot them down if they engage in arson.
The person who shoots, be he cop or civilian, will be indicted just like Kyle Rittenhouse in Kenosha.
Shoot the gas container and then offer them a light!
Why wait? Arson kills people. You don't wait until someone shoots before you defend yourself or others.
“Shoot them down if they engage in arson.”
Arson is a crime of terrorism, shoot them on the spot.