Let’s talk a second about an analogy.
Let’s say some dickbag decides to rob a local pharmacy. He gets a gun. He gets a mask. He goes to the pharmacy. He points the gun at the pharmacist behind the counter and demands the contents of the cash register. The pharmacist complies.
Maybe sometime down the road the cops make an arrest of the dickbag. BUT between the time of the robbery and the time of the arrest, common sense will tell us all that the dickbag is guilty of the crime of robbery.
And dickbag refuses a plea offer and goes to trial. Between the moment of the robbery and the moment he is convicted, he is still guilty of that felony.
What he is not (until the conviction) is “presumed” to be guilty in the eyes of the law.
Whether Hunter is guilty of his fucking tax crimes (as alleged) is not yet established via a trial. So, in the eyes of the law, he is presumed innocent. But he might very well (in reality) be as guilty as fuck.