Were I on that Grand jury, I'd be handing down my decision to acquit (assuming that's how it goes) from as far away from Missouri as I could get.
Everybody's giving bshole a hard time, but he has a ghost of a point here. There is a substantial part of our nation that believes one should be able to attack someone - even a cop - with relative impunity, at least to the extent of not facing retaliation with a more effective weapon. If you attack someone with your fists, they should be charged if they defend themselves with a knife or gun. If you attack someone with a knife, they should be charged if they defend themselves with a gun. It's completely inexplicable to me, but I see that echoed quite often.
I personally wouldn't call it "black people" who believe that since there are plenty of blacks who disagree and plenty of whites who agree but it's a well-represented outlook in America and from my limited perspective, probably world wide. It's simply a broadening of our belief of proportionality, that if someone steps on your toes you should not shoot her.