Claims a French expert. "Ghislaine Alleaume, a historian and Arabist at the French national research centre, the CNRS, reached her conclusion after studying television and internet messages circulated by Bin Ladens supporters. She bases her theory mostly on a video of the al- Qaida leader broadcast by al-Jazeera television on 27 December 2001. Bin Laden looks weary and sick but Mme Alleaume also believes he has had his left arm amputated. He is wearing a military camouflage jacket and you can see that someone has placed a bag in the same colours just behind him to disguise the fact that he has lost his arm, she said. She believes he died of his injuries soon afterwards. Given the sanitary conditions, it would not have been easy to survive an amputation, she said."