Link to Opinion of the Court.
Holding : The Sixth Amendment right to a jury trial, as incorporated against the states, requires a unanimous verdict to convict a defendant of a serious offense.
Judgment : Reversed, 6-3, in an opinion by Justice Gorsuch on April 20, 2020. Justice Gorsuch delivered the opinion of the court with respect to Parts I, II–A, III, and IV–B–1, in which Justices Ginsburg, Breyer, Sotomayor and Kavanaugh joined; an opinion with respect to Parts II–B, IV–B–2, and V, in which Justices Ginsburg, Breyer and Sotomayor joined; and an opinion with respect to Part IV–A, in which Justices Ginsburg and Breyer joined. Justice Sotomayor filed an opinion concurring as to all but Part IV–A. Justice Kavanaugh filed an opinion concurring in part. Justice Thomas filed an opinion concurring in the judgment. Justice Alito filed a dissenting opinion, in which Chief Justice Roberts joined, and in which Justice Kagan joined as to all but Part III–D.
Essentially, this judgement brings Louisiana and Oregon into line with the Federal Government and the other 48 States.
I have not even BEGUN to dig through the mess of the Opinion of the Court. Part of the Opinion had the concurrence of 5 Justices, part had the concurrence of 4 Justices and part had the concurrence of 3 Justices. Justice Thomas concurred in the Judgement, but for completely different reasons than the majority Opinion.
Justices Alito, Roberts and Kagan dissented.
For now, the thing to take away from this is that criminal juries must be unanimous.