The Supreme Court also ruled today in McQuiggin v. Perkins. The opinon is available in Adobe .pdf format.
Also from SCOTUSblog:
Justice Ginsburg has second opinion, in McQuiggin v. Perkins. Sixth Circuit is vacated and remanded. The opinion is 5-4. So much for unanimity.
Actual innocence if proved serves as a gateway through which a petitioner may pass whether the impediment is a procedural bar or expiration of the AEDPA statute of limitations, as in this case.
Scalia dissents, joined by the Chief and Thomas and in part by Justice Alito.
Earlier coverage of Perkins begins at the link.