Police are appealing for information after a woman and her father were found with gunshot wounds in a house nearly two weeks after her mother's body was recovered from a river.
The bodies of 64-year-old Archie McKelvie and his daughter Corrin Barker, 31, were found in the kitchen at the rear of his home in North Road, West Bridgford, Nottingham, last Thursday.
Formally identifying the father and daughter today, Nottinghamshire Police said post-mortem examinations had shown the pair died from gunshot wounds and that a shotgun had been found at the scene.
The bodies were found by police investigating the death of Corrin's mother, Pauline Barker, two weeks earlier.
The 56-year-old woman was found drowned in the River Trent close to Nottingham Racecourse in Colwick at around 11.40am on April 15.
She was wearing a black quilted jacket, a blue denim long-sleeved shirt, a purple long-sleeved T-shirt, black velour jogging bottoms and white trainers with light blue stripes on them, a police spokesman said.
A murder investigation is under way to establish the circumstances surrounding the deaths, but detectives are not seeking anyone else as part of their inquiries, the spokesman added.
Mr McKelvie was last seen at his home on 12.30pm last Tuesday while his daughter, from the Edwalton area, was last seen at 3pm on Wednesday in West Bridgford.
The final movements of Ms Barker's mother, who was from the Lady Bay area, are unclear.
Detective Chief Inspector Kate Meynell, senior investigating officer, said: "We know who is involved and we know how they died. We are now trying to piece together exactly when and why this happened.
"We have located Archie's, Corrin's and Pauline's relatives and are keeping them informed and supported at every stage of our investigation.
"They have been helping us with our inquiries into their loved ones' way of life, but we are now appealing to Nottinghamshire residents for more information about their final movements.
"Do you know Archie, Corrin or Pauline? They appear to have kept themselves to themselves, but we do believe they were known by some members of the West Bridgford community.
"If you know them, or recognise them from their pictures, and think you may have seen them around the time of their deaths, please call us.
"Also, if you heard anything suspicious between 3pm on Wednesday 25 April and 11am on Thursday 26 April in the vicinity of North Road, get in touch.
"The smallest, seemingly insignificant, piece of information to you could very well be a major lead for our investigation."
Anyone with any information should contact the Nottinghamshire Police incident room on 101, extension 844 6906, or call Crimestoppers on 0800 555 111.