Murder victim Joanna's sock missing

Police have confirmed that one of Joanna Yeates' socks was missing when her body was found.

She was not wearing her coat or boots but those items were found at her home in Bristol.

The 25-year-old landscape architect was discovered on Christmas Day in a lane three miles from her home. She had been strangled.

Miss Yeates was last seen after going for drinks with colleagues on December 17.

In a statement, Mr Jones said: "I would emphasise that this is a complex investigation and it is being meticulously investigated."

Holding up a bag containing a long, ski-style grey sock of a similar size and colour to the one worn by Miss Yeates, he said: "I am here this morning to talk to you about a missing sock.

"When Jo was found on Christmas Day morning in Longwood Lane, although she was fully clothed, she was not wearing her jacket, she was not wearing her boots and she was only wearing one sock.

"The jacket and the boots have been found at her home address. That would indicate that Jo had returned home.

"However, at this present time the sock has not been found. It hasn't been found at Longwood Lane and it hasn't been found at her home address."

Mr Jones said that CCTV footage published in a newspaper, which had been taken from a camera at the Hophouse pub in Clifton, was viewed "very early" in the inquiry.

But the detective confirmed that it might be the last known sighting of Miss Yeates.

"It is of very poor quality, the CCTV footage, and there is other CCTV footage in the area, for example Tesco Express, which we have circulated," he said.

"That provides a very good image of Jo and is corroborated with the fact that Jo was in the shop at that time and the purchase that she made."

Police revealed that less than 24 hours after an advert was placed on Facebook it had been viewed nearly 250,000 times and hundreds of people have clicked through to the police's contact form.

There have also been more than 70,000 views of the appeal on the Avon and Somerset Police website and more than 120,000 people have watched CCTV of Miss Yeates placed on YouTube.