Puzzle sent by serial killer to TV station includes Cynthia Kinney's name, sheriff says
                                
                                
                                    (Newser) -
                                    Since last year , authorities have been  investigating a possible link  between the BTK serial killer and Cynthia Kinney, who went missing in Oklahoma in 1976 at age 16. Now they're taking another look at a crossword puzzle sent by the convicted killer, Dennis Rader, to a TV station...