Teenage killer Morgan Leppert laughs in disturbing police tapes as she admits to murdering disabled elderly manViewers heard the chilling laughter of child murderer Morgan Leppert in police interview tapes from ITV documentary Children Who Kill. The show saw presenter Susanna Reid meet Leppert, who was labelled the ‘blue eyed devil’ aged 15 when she was convicted of the murder of an elderly disabled man back in 2008. The 62-year-old man named James Stewart, was stabbed multiple times in his Florida home with metal rods and a knife, before being suffocated with a plastic bag by the teenager and her...