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.

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.

Aaron Roach Bridgeman unearths how cocaine is affecting Britain's teenagers and explores what drives a teenager to pick up a knife and kill. (S1, ep3)

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.

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 school friend and bestselling author Lynne Barrett-Lee.

Journalist Leah Green investigates teenage murderer and Yorkshire Ripper obsessed James Fairweather, who at the age of 15 became Britain's youngest serial killer after stabbing two strangers to death and admitting to planning to slay 15 more.