Johnson v. New Jersey (384 U.S. 719…
“ Petitioners challenge the validity of their convictions on several other grounds, all of which we have examined with great care, including the claim that their confessions were coerced. We conclude without unnecessary discussion that those grounds which may be tested on this review of the judgment of the New Jersey Supreme Court are without merit. We further find that petitioners' contentions relating to the voluntariness of their confessions are beyond the scope of our review in this proceeding. ”
