Your statement "You go to jail when you've been proven guilty in a court of law" is incorrect. You can also plead guilty before a court trial, and go to jail as a result. I believe most guilty judgements end this way.
His Wikipedia entry at https://en.wikipedia.org/wiki/Tommy_Gregory_Thompson points out:
> On 28 November 2018 a jury awarded Investors $19.4 million in compensatory damages—$3.2 Million to the Dispatch Printing Company (which had put up $1 million of $22 million invested) and $16.2 million to the court-appointed receiver of the other investors
In this CBS article we read that Tommy Thompson plead guilty, so what do you mean by saying that he needs to stand trial even after he plead guilty?
Quoting the article:
> Thompson pleaded guilty for his failure to appear and was sentenced to two years in prison and a $250,000 fine. Thompson's criminal sentence has been delayed until the issue of the gold coins is resolved.
> That April 2015 plea deal required Thompson to answer questions in closed-door sessions about the whereabouts of the coins, which the government says are worth $2 million to $4 million. Importantly, he must also "assist" interested parties in finding the coins under that deal.
He broke the terms of the plea deal.
Is that what you want the trial to be about?
Also from the CBS article,
> Thompson hasn't just refused to answer questions, the court ruled: He's also violated the requirement that he "assist" the parties by refusing to execute a limited power of attorney to allow that Belizean trust to be examined, as required under his plea deal.
How is that a 'fishing expedition'? Fraud was proven, the key person says the stolen coins are held by a Belizean trust, the key person agrees to provide access to the trust in exchange for a plea deal, then refuses to honor that deal.
How do you figure that Thompson is "innocent" here?