Diane Stewart: Man arrested over murderer's wife death Published duration 22 August 2018

image copyright Contributed image caption Diane Stewart died at her home in the village of Bassingbourn, Cambridgeshire, in 2010

Police investigating the death of the wife of a convicted killer have arrested a man on suspicion of murder.

Diane Stewart, 47, died at her home in Bassingbourn, Cambridgeshire, on 25 June 2010.

Police arrested a 57-year-old man from Bedford on Tuesday and he has since been released under investigation.

Mrs Stewart's husband, Ian Stewart, was convicted of murdering a children's author who had been drugged and suffocated last year.

Mrs Stewart's cause of death was put down to an epileptic seizure in the garden of the family home.

An inquest was held but police said last year they were re-examining her death after Stewart's conviction in February 2017 for the murder of his fiancée Helen Bailey.

image copyright SBNA image caption Stewart and Ms Bailey met online following the deaths of their respective spouses

Ms Bailey was killed at the home she shared with Stewart in Royston, Hertfordshire.

He had secretly been giving his fiancée the sleeping drug zopiclone for weeks before he eventually smothered her with a pillow and dumped her body in a hidden cesspit.

She had been missing for three months before she was found.