Making up history again, eh.
His was charged unjustly with crimes for which he demanded trial in vain, and after two years of imprisonment which disgraced his enemies was released on bond. A nolle prosequi was entered in his case in 1869, and thus he was never brought to the trial which he earnestly demanded.
After he was released, he traveled to Europe on a couple of occasions and other Southern states. He also wrote a couple of books.
If you don't like him or what he stood for, that's one thing. But making up lies simply reinforces the Southern opinion of yankees.
Yes, he did travel to Europe and even received visitors form the continent in Biloxi (including Oscar Wilde). Nevertheless, his writings did much to rehabilitate his reputation.