Constructed over 4000 years ago by Stone Age man, it was thought that it had been abandoned by local communities in 1500BC. That was until the 1923 discovery of a decapitated skeleton buried just outside the stone circle. The murder weapon was an iron sword made between 100BC and AD1000. But who was the murder victim? A British tribal leader killed by the Romans? Or perhaps a Saxon, the victim of the fierce wars that divided Southern England in the Anglo-Saxon period. Incredibly, no one realised the true significance of the bones. They were catalogued, boxed and stored – and thought to have been destroyed in the Blitz. But in 1999, archaeologist Mike Pitts discovered them in the Natural History Museum, inspiring a new quest to discover the identity of Stonehenge man .