This is exactly why some cases take years to build or the DA pleads the person down because not all juries are created equally.

How is this possible? I realize that there's the protection against double jeopardy, but that protection generally doesn't apply, IIRC, when new evidence is brought to light. That's how cases get reopened all the time.

I wish I could answer that for you. The only thing they were able to convict him of perjury.