The justices refused to order the federal appeals court in Atlanta to examine Davis’ case and they declined to do so themselves.
In 2009, the high court ordered a federal judge to examine evidence Davis said would show he was innocent of the 1989 killing for which he has been sentenced to death.
But the judge decided last year that Davis had failed to clear his name. At the moment, executions are on hold in Georgia after federal agents seized the state’s supply of a key lethal injection drug.
