PLEASE NOTE: EDIT CONTAINS CONVERTED 4:3 MATERIAL<br/> <br />It's a mystery that's still baffling British police.<br/> <br />How did a spy whose body was found in a locked sports bag like this get inside it.<br/> <br />Gareth Williams had the keys to the lock with him inside the bag and there was no sign of a struggle.<br/> <br />So did somebody else put him there?<br/> <br />This police reconstruction shows a yoga expert trying to lock himself into a similar bag.<br/> <br />He tried 300 times without success.<br/> <br />A lawyer for Williams' family has told an inquest hearing they believed a secret service agency removed evidence from the scene relating to his death.<br/> <br />British intelligence officials have denied the 31-year-old's unexplained death was linked to his work or that it had covered up the episode.<br/> <br />One of the detectives investigating the death has said she believed someone else had helped him into the bag because there were specks of unidentified DNA on it.<br/> <br />Williams' body was found in the bag at his apartment a week after he failed to show up for work with Britain's MI6 foreign intelligence agency.<br/> <br />Paul Chapman, Reuters
