Just because Al Sharpton is protesting doesnt mean its wrong, A broken clock is right twice a day.
Considering someone has been killed, Certainly minally a Grand Jury Investigation is warranted and if the Grand Jury sees enough evidence for a trial, so be it and if the Grand Jury says he is likely Not Guilty because of the Stand Your Ground Law, then that is law.
The Sanford Police department has had very little investigations so far and the Police Chief has taken a leave of absense because of it