It would be nice if the protesters had the maturity to see the value of "innocent until proven guilty", because one day they or their son/daughter/spouse could be the one about whom the grand jury is deciding to indict or not. A thinking, logical person would want
everyone to be treated as innocent until proven guilty.
Instead, idle people have been incited to terrorize to get their way with vigilante "justice", like this:
https://www.youtube.com/watch?v=FwJrG2AMghw
And apparently
nobody in black
elected leadership is teaching them to respect the rule of law and the grand jury process, and to go home and work on being a student or work on finding a job and being useful.
Here is grand jury info:
Answers to questions about the Ferguson grand jury