Live with the latest crime investigations, news and appeals.

How do you solve a murder when you have no idea who the victim is? That's the challenge facing Thames Valley Police, who are piecing together details after human remains were discovered in Bracknell in July. Police were called to Hawthorn Lane after workmen who had been clearing ditches made the discovery.

Crimewatch speaks to the experts who have been working to reconstruct what this man may have looked like, in the hope of revealing his identity. Detectives also exclusively announce a potentially significant new breakthrough in the case.

Plus, 20 years after she was stabbed and sexually assaulted in her own home, the family of murdered primary school teacher Joy Hewer make a heartfelt appeal to trace her killer. The Metropolitan Police ask for viewers' help to identify a potential witness, captured in a new digitally enhanced CCTV image taken from the block of flats in Walthamstow, north east London, where Joy lived. Show less