Family see graphic footage of Gareth Williams’ death scene as 'mystery DNA' is found on bag containing body

The body of spy Gareth Williams was found in the bath of his home in London in August 2010 (PA)

Video footage of Gareth Williams’ death scene was shown in a court today, unseen by members of his family who could not bear to view the footage which included shots of a bag with the body of Gareth Williams still inside.

Examination of the red North Face sports holdall also showed traces of the DNA of another person in the zip toggle and the padlock, the inquest into the computer specialist’s death was told. Detective Chief Inspector Jackie Sebire, who led the murder inquiry said “They were two minor components of another contributor's DNA. My thought or my opinion since I went into the scene is that a third party had been involved in the death or by putting the body in the bag.”

A graphic impression showed the way 34 year old Mr Williams was found inside the bag - in a foetal position lying on his back, naked, with his knees raised and arms folded across his chest. The key to the padlock was under his right buttock, making in “incredibly difficult” for him to have reached it in an attempt, somehow, to escape. In any event, said DCI Sebire, “there were no signs that he was trying to get out, no damage to his fingernails or hands, no tear in the lining inside the bag. He was very muscular, he trained regularly. I would at least expect some tearing to the netting. He was very calm, his face was very calm.”

An examination of the holdall in court showed that it would have been seemingly impossible for Mr Williams to have locked himself into the bag and then moved it into a bathtub where it was found, the coroner, Dr Fiona Wilcox, pointed out. Yet, apart from the speck of DNA on the bag, detectives had been perplexed by any sign of the presence of a ‘third party’ anywhere else in the MI6 officer’s home in Pimlico, south west London.

The police had found no evidence that attempts had been made to wipe out incriminating evidence. "There was no sign of the place being cleaned so there were no signs of bleach to destroy it” said DCI Sabire. "There was no evidence the bag itself had been cleaned or washed down or the lock or handles had been cleaned to remove traces of DNA evidence."

What the police did find in the flat was £20,000 worth of designer clothes for women all "immaculate" and "in pristine condition" and many in tissue paper; make-up items including nail varnish and eye shadow that were "all new" and apparently unused; wigs wrapped in net packaging, which "appear to be unused", including one Mr Williams had bought on his recent trip to the US and 26 pairs of boot and shoes most bearing designer labels such as Christian Louboutin, Stella McCartney, Christian Dior and Chloe, some which appear to have been worn.

The video footage, taken on the evening of 23rd August 2010, when Mr Williams’ body was discovered, revealed no sign of a break-in at his home, with cash left in a cupboard and a mobile phone on the living room table. The place was in a pristime condition apart from the bedroom where a blue toweling dressing gown, which had shown traces of Mr Williams’ semen, the inquest was told, and a duvet cover had been flung on the floor. The wardrobe door was open and a white shirt, still in its laundry wrapping.

Giving evidence later, Sian Jones, who described herself as a “close friend” of Mr Williams, denied that he was a transvestite. “ We talked about all kinds of things, personal matters. I feel he would have been able to confide in me, I wouldn’t have been judgmental” she said.

The inquest continues