Ninth Circuit going en banc to reconsider intersection of Eighth Amendment juve jurisprudence and federal sentencing guidelines

In this post back in July, I noted work on an amicus brief in support of a Ninth Circuit en banc petition in US v. Riley Briones.  The panel opinion in Briones is available at this link, where you will find a split decision in which the Ninth Circuit affirmed the district court's adoption of the federal sentencing guidelines as the key factor in the course imposing a life without parole federal sentence on a juvenile offender.  The amicus brief, which is available here, argued "It is unreasonable — and unconstitutional — for a court to routinely apply the Sentencing Guidelines when a defendant is subject to a Guideline sentencing range of life without parole for a crime committed as a juvenile."

I am now pleased to be able to report that, as of yesterday, the panel opinion in Briones is technically no longer good law thanks to this Feb 13, 2019 order by the Ninth Circuit:

Upon the vote of a majority of nonrecused active judges, it is ordered that this case be reheard en banc pursuant to Federal Rule of Appellate Procedure 35(a) and Circuit Rule 35-3. The three-judge panel disposition in this case shall not be cited as precedent by or to any court of the Ninth Circuit.

Though I am not exactly sure of the timelines for en banc review in the Ninth Circuit, I presume briefing and argument will take a number of months though we might still get a new decision before the end of this year.  Meanwhile, folks who follow this area of jurisprudence closely may recall that the Third Circuit is also in the midst of en banc review of related post-Miller Eighth Amendment application issues US v. Corey Grant, No. 16-3820, as discussed in this post from a few months ago.  A helpful reader reported to me that oral argument in Grant is scheduled for next week.

I have been a bit surprised that we have not yet seen the Supreme Court take up any follow-up Eighth Amendment cases since it decided Graham and Miller in short succession in 2010 and 2012.  It is interesting to speculate if either the Briones or Grant cases might interest the Justices after (inevitable?) big split en banc circuit rulings in these cases.