Convicted murder Michael Roberts has been executed by lethal injection for the February, 1994 killing of his neighbor, Mary Taylor, during a robbery in suburban St. Louis. Roberts, who had requested there be no more appeals filed in his case, was strapped to the gurney in the Potosi Prison’s death chamber and was pronounced dead shortly after midnight this morning. Roberts was described as composed and accepting as he prepared for death. In his final statement, he asked for forgiveness.