ruled it unconstitutional
... that in 1959, the US Supreme Court ruled it unconstitutional for a prosecutor to knowingly use false testimony, even if the testimony does not directly relate to the defendant's guilt?
... that in 1959, the US Supreme Court <b id="mwBNo"><a href="./Napue_v._Illinois" id="mwBNs" rel="mw:WikiLink" title="Napue v. Illinois">ruled it unconstitutional</a></b> for a prosecutor to knowingly use false testimony, even if the testimony does not directly relate to the defendant's guilt?