Daheen Lee, Anatomy Demonstrator at the School of Biomedical Science at the University of Sheffield, builds a full facial reconstruction from a skull in clay.

'Mr X' was a badly decomposed body found in a holdall in Sheffield in January 2000. Before his murder could be solved police had to first identify who he was. To assist in that they turned to academics and students at the University of Sheffield who built a facial reconstruction. His story is told in the free open online course Forensic Facial Reconstruction: Finding Mr X.

futurelearn.com/courses/forensic-facial-reconstruction/