WASHINGTON — The Supreme Court on Friday blocked Oklahoma from executing death row inmate Richard Glossip after the state’s attorney general agreed Glossip’s life should be spared.Glossip had been scheduled to be put to death on May 18 despite statements by new Oklahoma Attorney General Gentner Drummond that Glossip did not receive a fair trial.An Oklahoma appeals court subsequently upheld Glossip’s conviction and the state’s pardon and parole board deadlocked in a vote to grant him clemency …