How does this FBI information, evidence that laws were broken, get in front of a federal grand jury, or some other grand jury?
There's two ways for the Grand Jury to get a case to trial: the first is the Indictment, where the prosecution brings information [charges, called a bill] to the Grand Jury's attention; the second is the Presentment, where the Grand Jury itself crafts the charges of its own knowledge/initiative. (See here.)
Aside from this, there's also the possibility of private prosecution. This, I think, would be an excellent case to try in States where it's allowed.
Is that why they call you "Triple"?