When Kids Kill

In 2009, TJ and Kemi were convicted of the manslaughter of Rosi, in what the investigator described as 'the most extreme case of bullying' he had seen in 30 years.

Documentary series with Leah Green, exploring the stories of Britain's most high-profile child killers. 18-year-old Lewis Daynes exploited schoolboy Breck Bednar's career aspirations in order to groom him online before killing him. Now Breck's mother is determined to improve other children's awareness of online dangers.

Documentary series with Leah Green, exploring the stories of Britain's most high-profile child killers. Schoolboy William Cornick stabbed his teacher Ann Maguire seven times in the back in front of his classmates, and then calmly sat down again saying 'Good times'. With help from psychiatrists, journalists and prosecutors, Leah attempts to explain what happened.

Documentary series with Leah Green, exploring the stories of Britain's most high-profile child killers. Karate instructor Tony Bushby tricked promising art student Katy Wynter into going out with him by using fake Facebook friends and, once he had won her trust, stabbed her to death in a sexually motivated attack. Leah interviews journalists, sociologists and criminologists to try to figure out why.

Documentary series presented by investigative journalist Leah Green, exploring the stories of Britain's most high-profile child killers. Leah looks into an extreme case of teenage domestic abuse - the murder of 15-year-old Rebecca Aylward by her 16-year-old boyfriend Joshua Davies. Contributors include their teacher, a schoolfriend and bestselling author Lynne Barrett-Lee.

At 15, James Fairweather is Britain's youngest serial killer.