A man twice convicted in the 1990 slaying of a Chillicothe woman should remain behind bars for life despite a recent ruling that criticized his conviction, the State said on Thursday.  The Missouri Attorney General’s Office filed a protest with the state Supreme Court in the case of Mark Woodworth. He was found guilty in 1995 in the shooting death of Cathy Robertson.  The conviction was upheld in 1999 following an appeal.   The high court appointed Boone County Circuit Judge Gary Oxenhandler in 2010 to review the case. Oxenhandler ruled in early May that Woodworth was the victim of “a manifest injustice” who should either be set free or receive a new trial.