Described as "brilliant" by former colleagues, Mr Saunders, 32, who studied law at Christ Church, Oxford, was destined to become a QC within the next few years. Ms Clarke also studied law at Oxford. Mr Saunders had been active in the Territorial Army during and after his days at Oxford, friends said. One colleague told of his disbelief that Mr Saunders could have been the gunman at the centre of the siege.