William J. Brennan, Jr., Nelson v. O'Neil/Dissent Brennan…
“ California rejected that choice: the jury in the present case was explicitly instructed that Runnels' statement could not be considered as evidence against O'Neil. The question therefore, is whether California, having determined for whatever reason that the statement involved in this case was inadmissible against respondent, may nevertheless present the statement to the jury that was to decide respondent's guilt, and instruct that jury that it should not be considered against respondent. I think our cases compel the conclusion that it may not. ”
