Their barrister suggested a sinister cover-up had left them with no way of knowing how and why Gareth Williams died.
One theory is that he died at the hands of a colleague. Another is that a foreign agent killed him because of his espionage work.
The discovery of the body in his flat near the Secret Service headquarters in London sparked a 20-month police inquiry that has drawn a blank.
At a public hearing yesterday, it emerged that the flat may have been swept clean of evidence, with no fingerprints or DNA anywhere.
It was also revealed that – far from being a back-office worker – Mr Williams had just completed training for deployment on operations.
Other revelations included:
- An expert seeking signs of forced entry said he was hampered because the front door had been taken from its hinges and locks removed;
- Pathologists still cannot agree on how Mr Williams died. The 31-year-old suffered no visible injuries and could not have locked himself in the bag according to police;
- DNA found on his hand that police rated as highly significant was in fact left by a bungling forensic scientist.