SCOTUSblog posts, "Argument preview: What can a federal habeas petitioner argue when defending a judgment in his favor?" It's by Rory Little, rofessor of Law at UC Hastings College of the Law. Here's the beginning:
This is a death penalty case from the Texas state courts, coming to the Supreme Court after a federal district court granted federal habeas relief but the Fifth Circuit reversed. Jennings, with a record of prior robberies, shot and killed a Houston police officer while robbing a store. His guilt is not at issue; the case challenges only his sentence.
The SCOTUSblog case file for Jennings v. Stephens is at the link. It will be argued tomorrow at the Court.
Earlier coverage of the case begins at the link.