DEveectives questioned the murderer of children's author Helen Bailey about the death of his first wife in 2010.
Detectives of the large crime unit Bedfordshire, Cambridgeshire and Hertfordshire today announced that they have arrested a man this week after a new investigation of 47-year-old Diane Stewart who suddenly died in her home in June 2010.
At that time she was married to Ian Stewart, who in 2016 murdered Mrs. Bailey in the £ 1.5 million house she shared.
On Wednesday, investigators would only say that a 57-year-old man from Bedford had been arrested earlier this week and questioned on suspicion of Mrs Steward's murder before she was released for investigation.
Stewart was jailed for life at the crown bank of St. Albans in 2017 for the murder of the successful children's author, Ms. Bailey.
Seven years earlier, his first wife had died unexpectedly in the house in Bassignbourne, where she lived with Stewart and their children.
Ms. Bailey's former neighbor, Mavis Drake, told The Telegraph last night: "I can not even imagine how the Diane family now feels, it will evoke so many sad memories and open many wounds.
"I would say that I am shocked by the news, but I am not surprised [Stewart] was not an emotional man, always silent, never publicly shown of affection. Not that I saw it anyway.