William J. Brennan, Jr., McGautha v. California (402 U.S. 183…
“ I do not suggest that due process requires such facts to be found beyond a reasonable doubt, or that we could reverse on due process grounds a conviction or sentence that we believed contrary to the weight of the evidence. But there is in my mind a serious question whether a State may constitutionally allow its chosen trier of fact to base a determination to kill any person on facts that the trier of fact himself does not believe are supported by the weight of the evidence. ”
