Apodaca (D), Cooper, Jr., and Madden were convicted respectively of assault with a deadly weapon, burglary in a dwelling, and grand larceny before separate Oregon juries, all of which returned less-than-unanimous verdicts. The vote in the cases of D and Madden was 11-1, while the vote in the case of Cooper was 10-2, the minimum requisite vote under Oregon law for sustaining a conviction. Their convictions were affirmed by the Oregon Court of Appeals, and review had been denied by the Supreme Court of Oregon, all three sought review in this Court upon a claim that conviction of crime by a less-than-unanimous jury violates the right to trial by jury in criminal cases specified by the Sixth Amendment and made applicable to the States by the Fourteenth. The Supreme Court granted certiorari to consider this claim.