SYG = legalized dueling?

[ShadowLiberal]

13. There was a comic about this a while ago

I forget where I saw it, but there was a comic sort of along that line of logic, except it was more 'legalized mass murder'.

It started out with a gun nut seeing a dark skinned kid wearing a hoodie walking down the sidewalk, and the gun nut going "I feel threatened by that dark skinned hoodie wearing kid" and shooting him dead. Then a middle aged African American who sees the whole thing says "holy crap, I feel threatened by that gun nut" and points the gun right to his face.

The whole logic of stand your ground though would say it would be perfectly ok for some random stranger walking by who saw Zimmerman murder Trayvon to then murder Zimmerman with a gun simply because they feel threatened after seeing Zimmerman murder someone with a gun.