Frank Murphy, Griffin v. United States (336 U.S. 704…
“ The exceptions have a central foundation: distrust of the jury's ability to evaluate this kind of evidence. Many rules of exclusion are bottomed on this distrust, of course. But it is clearly misplaced when directed at the jury's capability in weighing the value of uncommunicated threats in a murder trial. The evidence is simple; it is not calculated to inflame; it is far more difficult to fabricate than are communicated threats; the prosecution can easily question its importance; and it provides solid support for a defendant's self-defense theory. ”
