I do find this no-indictment surprising. Something doesn't seem right. This is a guy selling ciggies w/o tax. Seems to me any policeman would not want to turn a minor infraction into a death-causing incident, esp. using a disallowed choke hold (disallowed because it kills people). I think I can guess why he felt he had to use it. But then again, we're talking about a guy selling ciggies w/o tax. Not a serious crime like running a red light.
But I'm not familiar with all the evidence. I'd like to know more.
Homicide is the act of a human killing another human.
I think we can all agree that the acts of one human contributed to the death of another human. The phrase you are grasping for is criminal homicide. Apparently, the Grand Jury determined that no criminal act could be proved.
The good news is that, according to CNN, exactly nothing else bad is happening anywhere else in the world and the only newsworthy event of any kind today was the grand jury's decision on this matter. Otherwise, today was, in CNN's view, utopian. Nothing else happened today of any significance whatsoever.
If riots occur they must be put down with force. Anyone attempting to set fire to a building should be shot by sniper fire. No fires. Protest actual justice all you want.