The dead can't answer back.

I have absolutely no idea whether Sir Jimmy Savile did in fact do the things he is now being accused of, but I find it very depressing the way, following the death of any celebrity, that within a very short time people start coming out of the woodwork to say unpleasant things about them.  Things which, presumably, they didn't dare say while they were still alive - and of course, the object of their accusations is conveniently no longer around to defend themselves.  Abject opportunism is a phrase which springs to mind.