That investigation was then interferred with by the State, the Federal government including Obama (remind yourself it was an election year and votes count - he didn't bother speaking out on the little black girl killed while sitting on the porch - shot dead by a black teen but it was okay to insert himself into what was becoming a race war as Trayvons father).
Maybe if GZ is aquitted, Obama and Holder will schedule another "beer summit" to try and mitigate the public embarassment that is due to them.