True Crime Jackie Malton examines the case of Joseph Kappen, who murdered three young women in South Wales in 1973. He was only identified through pioneering DNA techniques after his death. 2026-04-18 Jackie Malton examines the case of John Duffy and David Mulcahy, who murdered three women across London in the 1980s before both were convicted in 2001. 2026-04-18 In 1992, an attack in Nottingham led to an investigation which lasted nearly a quarter of a century. In time, DNA profiling would help to close the case. 2026-04-18 The story of the murder of Lynette White - how her death led to the longest murder trial in British history at the time, and how police work and DNA eventually led to her killer. 2026-04-18 Gulistan Subasi was shot dead on her mother's doorstep in Hackney in 2010. The killing was a contract hit, and forensic work led to the killer's conviction. 2026-04-18 Jessica McGraa's murder in Aberdeen showed the risks to sex workers and the role of forensics in convictions. 2026-04-19