Four unsolved murders bear striking similarities to the two killings Christopher Halliwell is in jail for:

A witness has told how double killer Christopher Halliwell drove a white van like the one spotted at the scene of an unsolved murders. He also revealed the taxi driver lived just four miles from the field where Julie Finley’s naked body was dumped after she had been snatched in a city centre.

Julie had just turned 23 when she was last seen in Liverpool at about 11pm on August 5, 1994. The next day, her naked body was found 15 miles away in a field near the Rainford Bypass.

The new witness said Halliwell was working in North Wales at the time fitting windows, and was living in Aughton, returning home to Swindon, Wiltshire, at weekends.

The witness said Halliwell, a former cab driver, drove a white D-reg Ford Transit van, like one spotted near Rainford.

Carol Clark, 32, was picked up from the Bristol red light district in March 1993 before being dumped in a canal at ­Sharpness, Gloucestershire. It is believed she had either suffered a heavy blow to the neck or been strangled

Halliwell lived 40 miles away at the time and had a good knowledge of the canals, as he was a narrowboat enthusiast.

Jackie Waines, 35, was a mother abducted in Bristol and murdered in 1985.

Yvonne Fitt, also a mother, was found in a shallow grave outside Otley, West Yorkshire in 1992 and, like Ms Waines and Ms Clark, was snatched from red light districts.