MI6 spy did not die alone, police believe

London: The MI6 spy whose naked body was found in a sports bag in his bath could not have died alone, police believe.

They are now certain he was padlocked into the large holdall by someone else.

Gareth Williams, 31, who was working on secondment for MI6, was alive when he got into or was forced into the bag and died from suffocation.

There were no injuries on his body to suggest a struggle and police have still not ruled out the possibility that his death was the culmination of a bizarre sex game that went wrong.

But in another mysterious twist, the outer door to Williams's flat in Pimlico, Central London, had apparently been locked from the outside when police arrived on the scene.

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Detectives have now intensified their search for a Mediterranean couple known to have been with Williams in the weeks before his death.

They are understood to have had a set of keys to the flat.

The disclosures come after a month of frenzied speculation about what happened in the flat last month, including theories that Williams committed suicide alone.

But as the head of MI6 attended Williams's funeral near his family home in North Wales Friday, the Daily Mail revealed that this line of inquiry has been discounted.

The Daily Mail also said that there was no evidence to support claims that Williams was a cross-dresser, that bondage equipment was found at his home, that a laptop was missing from the flat, or that he had reported to spy bosses that he was being followed.