If a Grand Jury finds nothing to charge him on that would kill any phony ‘civil rights’ trial/charges.
IMO that is why no GJ.
It can be. This one isn't. States have grand juries too. The only grand jury that Corey could possibly have access to is a state grand jury. She MUST use one if the case is a capital offense (murder, essentially), and may, at her discretion, use a grand jury for lesser offenses.
She has the power to charge or indict lesser offenses without a grand jury.