A Missouri man whose appeal of his 50-year sentence for burglary and assault has been backed by the W.N.B.A. star Maya Moore had his conviction overturned by a state judge on Monday. Before a packed courtroom in Jefferson City, Judge Daniel Green capped months of review by issuing a ruling that vacated the guilty verdict of the victim, Jonathan Irons, and ordered that he be released from the maximum-security prison where he has been behind bars for the last 23 years. Tears we