The U.S. Supreme Court stepped in just two hours before Troy Davis was scheduled to be excuted yesterday and ordered a reprieve until the Court can decide if the Georgia Supreme Court did its due diligence last March when it decided against giving Davis a new trial or hearing of new evidence. Davis was convicted of the 1989 murder of Savannah police officer Mark Allen MacPhail based almost entirely on witness testimony, but seven of the nine people who testified against Davis have since recanted or admitted they lied. Not one piece of physical evidence connects Davis to the killing. The U.S. Supreme Court will convene on Monday to review the Georgia court's ruling, which was decided by only a narrow margin, four state justices issuing opinions that Davis shouldn't get a new trial or hearing and three ruling that he should.