Pond where murdered Wiltshire woman's boots were found to be drained

The pond where the boots of murdered office worker Sian O'Callaghan were discovered is to be drained.

Sian was stabbed by Swindon minicab driver Chris Halliwell in March 2011. Her body was found in a roadside verge. But many of her belongings have never been found.

Detectives discovered her boots in a pond about eight miles away near Ramsbury in Wiltshire last week.

Sian's handbag, keys and phone have never been found. Neither has the knife. Police are investigating whether Halliwell killed other women from the area.