[John Stevens was found not guilty of murdering John Arthur on 9 April 1766] 

William More: I was a prisoner in Tothil-fields-bridewell, for asking charity in the street; John Arthur, the deceased, was a prisoner there before I was: he was about 16 years of age. I was there 28 days; he was hearty when I first went in; he was committed, as I heard, for an impostor: he could speak but very few words, and was what might be called an ideot. [...] Mr. Stevens beat him wherever he could, over head, back, belly, and every where;[...]  he was whipped with a cat-o'nine-tails about 9 nine days before he died, by Mr. Stevens, for befouling himself; he used to do it as he sat or lay […] The night before he died, the prisoner beat him with a bunch of keys: he was taken sick about 3 days before he died.

Q. Was he really dumb?

More: We could get nothing out of him; he could say, Tottey Mom, Tottey Mom Wansey, that was all: if any body gave him a piece of bread, he would sing and dance for an hour together.