HUNTSVILLE, Texas - A man was executed Thursday for gunning down a Texas state trooper in 1992, a slaying his trial attorneys had argued was prompted by anti-police rap music. For his final statement, Ronald R. Howard looked at the trooper's widow, daughter and brother and said he hoped "this helps a little. I don't know how, but I hope it helps." Then he turned to friends and a brother who were among his witnesses, expressing love and thanking them for locating two of his young children, who visited him on death row within the past week. "Love you all....