Mueller was essentially told in the beginning he wasn't allowed to find Trump "guilty," so all he could say is "he's definitely NOT innocent; quite the opposite."

He won't ever see jail time because we're too feckless and cowardly to actually put a treasonous former President in jail for actually inciting an insurrection. They'll at-most sink his Presidential campaign and basically make him sign something that says he'll never run for office again if he wants to remain solvent.