What if Sirius Black Was Proven INNOCENT?

On a chill autumn evening on the first of November in 1981, Dumbledore sits in his office reading the Daily Prophet. The news dancing on the front page is unbelievable: Sirius Black has been arrested for the murder of Peter Pettigrew, twelve muggles, and worst of all, for betraying Lily and James Potter to Lord Voldemort resulting in their deaths. None of it makes any sense. Dumbledore knew that James Potter had chosen Sirius Black as his son's godfather, and believed he had made him the keeper