You are just wrong. Nearly all complaints criminal in nature originate from a complainant, but they don't have to. Cases can develop from observations made by officers and agents or the general public or tips from confidential informants. It doesn't matter. The question is is a crime taking place or has one taken place.
The public integrity section of DOJ has already said that, in their opinion, criminal civil rights violations have occurred that can bring forward an FBI investigation. The FBI doesn't investigate civil matters. They investigate criminal matters. Gonzales is either stalling or trying to weasel out because these boys are part of the outcast class, not the protected minority class. The attitude appears to be that their skin is white and their pocketbooks are flush, thus they deserve no justice for the attempts to railroad them into long prison sentences through scurrilous and conspiratorial attempts to deprive them of due process and other potential violations pertaining to perjury and obstruction of justice designed ti deprive them of due process. There is no evidence that a crime was committed, which is the first due process hurdle in any criminal case.
I never said they did. I said "this case" originated with a complaint.