Season 5

The story of Surrey teenager Breck Bednar, who was lured to his death via an online gaming community. Computer engineer Lewis Daynes was setenced to a 25-year prison term for fatally stabbing Bednar in February 2014.

The case of Danai Muhammadi, who started a blaze that killed his estranged wife Melissa Crook, his father-in-law Mark Crook and his own baby in 2011.

The tragic story of disabled murder victim Gemma Hayter. Gemma was beaten, stabbed and suffocated before being stripped and left to die by best friend Chantelle Booth and her gang on a railway line in Rugby, Warwickshire, in 2010.

The story of how porn-obsessed killer Jamie Reynolds murdered 17-year-old Georgia Williams in Telford in 2013.

The story of how Rana Farqui was stalked and murdered by her former partner in Buckinghamshire in 2003.

The case of David Oakes, who shot Christine Chambers, 38, and their two-year-old daughter Shania, at their home in Braintree in June 2011.

The tragic story of Jayden Parkinson, who was murdered by her boyfriend after telling him she was pregnant.

Louise Turnbull from Gateshead, talks about the abuse she suffered at the hands of her stepdad, Albert Maughan.