Yes - Carolinamom is correct that the original lineup only included the Duke LaCrosse players, which sounds illegal to me.
And Nifong (fondly referred to as Liefong) had the lab withhold exculpatory evidence that none of the DNA taken from the false accuser came from any of those 40 Duke LaCrosse players! He had that evidence withheld from the Grand Jury. He's in a boatload of trouble and I've heard legal consultants say that what he's done is as unethical as anything they've ever heard a DA do.
Nifong also lied to the JUDGE that he didn't know of anything else that he could hand over to the defense.