I wonder if the Justice Department will bring charges on Darren Wilson. I really doubt it. I am sure the same set of facts the grand jury had access to which led to this decision should also dissuade the Justice Department from acting.
I really doubt it. I can't think of any case where an unjustified police shooting brought federal charges - I know the Rodney King and Abner Louima cases had federal charges, but in both cases that was a question of torture or prolonged beating.
The next avenue is likely civil charges, and I imagine there'll be a very sympathetic jury in St. Louis.