We've always questioned Grein’s story. We weren’t the only ones, either. Grein came out later to insist that Bernadin had abused him too. It was all getting a little much. The first thought which came to mind was that Grein wanted his story to throw doubt on those told by other victims, and that at least, is what McCarrick, is trying to do.
Edit: why couldn’t they have shot a picture of him outside of cardinal’s robes. He’s not a Cardinal any more.