Detectives searching for a missing elderly widower have found a body in the garden of a property where he had recently moved.
Bill Williamson, 82, moved into the bungalow of 53-year-old Ann Browning in Miltons Crescent, Ockford Ridge, Godalming, Surrey, last month after selling his own home.
Forensic officers searching her address found a body on Friday afternoon and officers from Surrey Police said they have now launched a murder investigation.
Sources said Mrs Browning, who was separated from her husband, remains in police custody along with her 30-year-old unnamed son on suspicion of murder.
A post-mortem examination will be carried out later but it is too early to confirm the identity of the body, a police spokesman said.
The last confirmed sighting of retired postman Mr Williamson was on September 10 and police said it was out of character for him to disappear.
Detectives are examining his habits and lifestyle and earlier made a public appeal to anyone who knows him or of places he visited to come forward.
Magistrates have granted police more time to continue to question Mrs Browning, who was arrested on Wednesday. Her son was held on Thursday afternoon.
Detective Inspector Juliet Parker, from Surrey Police, said: "Following an extensive forensic search of the property in Miltons Crescent, a body was recovered from the garden area this afternoon.
"Although it is too early to speculate on the identity of the body, we are now treating this as a murder investigation," she said. "I would like to renew our appeal for information regarding Bill Williamson's movements in recent weeks and I would urge anyone who may have seen him to contact us as soon as possible."