'Please come home Shannon, if you're out there come home. If anyone's got my daughter, my beautiful Princess daughter please bring her home safe. I need her home.' These words came from Karen Matthews... When a murder or abduction case captures the attention of the media, the cameras arrive and police know an appeal from the victim's devastated family will make full use of the publicity. Desperate relatives appear to make raw, emotional appeals for information. But sometimes the emotion is fake. In Tears, Lies and Videotape, Professor David Canter the UK's leading forensic psychologist and Professor Paul Ekman the world's foremost criminal body language expert, examine the evidence and show how these deceptive storytellers are eventually caught out. Shannon Matthew's story is included, as are the stories of Gordon Wardell and Tracie Andrews, who attended press conferences after having killed their partners.