20/20: No Place To Hide/Commanding Attention/Shortchanged/Halloween

"No Place To Hide" After his daughter is brutally murdered, an anguished father uses billboards to help the police track down her killer."Commanding Attention" Actress Geena Davis talks about her new show, Commander in Chief, her marriage, family, and career."Shortchanged" Short kids and their parents are turning to Human Growth Hormone (HGH) to help them achieve height and success. But is it worth it? Does being tall actually make you more popular and more successful?"Halloween" A look at the trends and popular costumes as Halloween approaches.