Who said that and why? I didn’t know, so I looked it up. You can too. I am betting no one knows the answer on their own, but if you say you did, j’accuse not.
Interesting to me is that, per Fowler’s Modern English Usage, we are correct when we use it generically, as in the accused cashier, or the accused baseball player, but not so when we make the accused specifically guilty of something, as in the accused murderer or the accused bank robber.
I think our world has learned not to be case specific on its accusations. Newspapers know, and I think most of know too, that we are not accused of a said crime anymore, but rather alleged to have done it.