S3, E1: In 2002, the murders of Holly Wells and Jessica Chapman horrified and shook the nation, and forensic science played a role in helping find the killer of the two ten-year-old girls.


S3, E1: In 2002, the murders of Holly Wells and Jessica Chapman horrified and shook the nation, and forensic science played a role in helping find the killer of the two ten-year-old girls.