(CNN) Hours before Marcellus Williams was set to die Tuesday night, Missouri Gov. Eric Greitens issued a stay of execution and said he would appoint a board to review the evidence in the 1998 stabbing death of former reporter Felicia Gayle. New DNA evidence that was unavailable during Williams' 2001 murder trial proved he did not do it, his attorneys said. But the Missouri attorney general's office wanted the execution to go ahead, arguing that evidence other than DNA linked him to the crime. Here are key things to know about the governor's review board: Who will be part of the board?Attorneys say new DNA evidence proves Marcellus Williams' innocence in murder caseRarely used Missouri law allows governor to appoint board to review evidence
New evidence shows _ from another man, not Marcellus Williams, was on the murder weapon, according to the inmate's attorney.