If i were the judge who tried him for treason ,i would have examined all angles of the case.First,one of the bases of the trial should be John Brown's background and his journey against slavery. His advocacy against slavery which shows on his record should be enough to convict him.
They wanted to avoid the discomfort of facing an unpopular view.
Answer:
It was a magically sad experience. It was as if he was creating a story in his mind as he was staring at the drum.