Lang made a conscious decision to not proceed to trial. He could have done that by requesting to "detach" the 1512(c)(2) charge while that is being taken by the Supreme Court in Fischer and proceed to trial with the remaining charges.
That's because Lang is on film trying to hit police with an aluminum baseball bat - he actually landed a few hits..
Lang is bad news.
He claims he was defending women from the police.
Interview a few days ago.