How?
You have already made several ignorant statements that you are completely unaware of the actual evidence in this case. That is not surprising though considering that you conveyed displeasure at the outcome of the grand jury.
That is the damn problem here with these cases - so damn many people bloviating over the case while doing exactly zero research in the facts. People believing utterly false statements made in the press like him being shot in the back. It is damn disgusting. If you cant be bothered to examine the FACTS then don't vomit your 'opinion' on the grand jury - it is worthless.
The real sick reality here is that these looters are destroying black communities. It is the height of idiocy. Take a perceived injustice against blacks (that is utterly false) and respond by actually purveying injustices against actual innocent blacks (and other races) in your local area. There are very few things that are more idiotic than that. these people really are just looking for an excuse to break and steal shit. Then they wonder why they are poor.