Documentary Catching a Killer: Crocodile Tears

Featuring exclusive interviews and shedding new light on the crimes that shocked the nation, this documentary goes beyond fake tears to reveal stories of deception and betrayal, when people who feigned their innocence or made public appeals on the news – often in front of the camera – committed the crime themselves.

The show looks back at the Philpott case, in which Mick and his wife Mairead, who attended a press conference after their house fire killed six children, were ultimately convicted of manslaughter in April 2013, alongside their best friend Paul Mosley.

The film contains interviews with Paul Mosley's brother Bryan, Darshna Soni, who covered the story for Channel 4 News, Mick Philpott's former partner of several years and 'star' witness at his trial Heather Keogh.

The film explores the case of Stuart Hazell, convicted in May 2013 of the murder of 12-year-old Tia Sharp in south London in August 2012, including a poignant interview with his father Steven Carter and Detective Constable Alison Grubb of the Metropolitan. The police, whose role was to support the family throughout the search for Tia.

Shafilea Ahmed's parents were convicted in 2012 of her 2003 murder. The couple's lawyer, Milton Firman, gives his first account of his relationship with them and how he was convinced by their claims of innocence.

Simon Foy, former head of homicide and serious crime at Scotland Yard, offers his own perspective on crocodile tear cases, their increase and the clues investigators look for when looking into a case.