His most recent appeal , in 2004 , also failed .
His original conviction was overturned on appeal but a second trial resulted in another verdict of guilty in 2002 after another prisoner claimed that Stone had confessed to the killings while on remand in jail .
Stone 's most recent appeal , in 2004 , also failed .
His original conviction was overturned on appeal but a second trial resulted in another verdict of guilty in 2002 after another prisoner claimed that Stone had confessed to the killings while on remand in jail .