The body of a woman missing for more than a fortnight is believed to have been found alongside that of a man near Wisbech.
Kanwal Bernice Williams, 50, from Lutton, in Lincolnshire, had not been seen since March 25.
Two bodies were found at a house in the Lutton area, which is between Spalding, King's Lynn and Wisbech.
Police, who are treating the deaths as "unexplained", have confirmed they are linking the discovery with the missing person inquiry.
The force added: "Police are not seeking anyone else in connection with this inquiry."
Investigations into the deaths are ongoing and formal identifications are not expected to take place until later this week.
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The 20-year minimum terms handed to a teenage couple for the brutal "executions" of a mother and her daughter have been referred to the Attorney General for being "unduly lenient".
Believed to be Britain's youngest double-murderers, the boy and girl - both 14 at the time of the murders - had sex, shared a bath and watched four Twilight vampire films as they "revelled" after the stabbing of dinner lady Elizabeth Edwards, 49, and 13-year-old Katie Edwards.
Now both 15, the couple were handed life sentences by Mr Justice Haddon-Cave, who said the pair had a "toxic" relationship and acted in a "grotesque" way.
"Had you been adults you may have been facing the whole of your lives in prison for this double murder."
The case was referred to the Attorney General under the unduly lenient sentence scheme and law officers have 28 days to decide if any action should be taken.
A statement from the Attorney General's office said: "The threshold to refer cases to the Court of Appeal is very high."
A sentence can only be regarded as unduly lenient if there has been a gross error and it is significantly below the level that any judge could have reasonably imposed after considering the facts of the case."
Video report by ITV's Peter Bearne.
Two 15-year-olds have been given life sentences, both with minimum terms of 20 years, for the murders of a school dinner lady and her daughter in Spalding, Lincolnshire.
The boyfriend and girlfriend, who cannot be named for legal reasons, were both 14 when they murdered Elizabeth Edwards and her daughter Katie, 13.
The boy stabbed them both in their beds while they slept at their home in in April. He pleaded guilty to the murders ahead of a trial last month.
The girl, who had admitted manslaughter, was also found guilty of murder, after the court was told she was the "driving force" behind the killings, because she held a grudge against the victims.
The judge said the case had "defining and particularly chilling" features, including the young age of the defendants and that the offence was carefully planned.
As both teenagers remained composed in the dock, flanked by security guards, the judge condemned their conduct after the killings as "grotesque."
An inquest has heard how a "cold, calculating, scheming man" killed his wife and daughter with a sawn-off shotgun, before shooting himself.Read the full story ›
The inquests into the deaths of a mother and daughter shot dead in Lincolnshire are taking place this morning.
50-year-old Claire Hart and her 19-year-old daughter Charlotte were killed near the Castle Sports Complex in Spalding on 19 July.
Lance Hart is believed to have shot the pair before turning the shotgun on himself.
A teenager who helped plan the killings of a mother and her daughter from Spalding has told police she 'felt like murdering for a while'.Read the full story ›
A 15-year-old boy has admitted stabbing to death a mother and her daughter at their home in Spalding.Read the full story ›
Two 15-year-olds have pleaded guilty to the manslaughter of a mother and daughter from Spalding.
The boy and girl, who cannot be named for legal reasons, are accused of killing 49-year-old dinner lady Elizabeth Edwards and her 13-year-old daughter Katie at a property in Dawson Avenue in April.
Relatives of the victims paid tribute on social media sites - with a teenage friend of Katie describing her as being "like a sister" and Ms Edwards as a second mother.
The two teenagers pleased guilty to manslaughter at Nottingham Crown Court this morning, but denied murder.
The trial is due to begin on October 5.
Two brothers whose mother and sister were shot dead by their father before he turned the gun on himself have spoken for the first time since the tragedy.
Charlotte Hart, 19, and her mother Claire, 50, were killed near the Castle Sports Complex in Spalding, Lincolnshire on July 19.
Lance Hart, 57, shot his daughter and wife with a single-barrelled shotgun before turning the weapon on himself.
Luke, 26, and Ryan Hart, 25, have now set up a tribute website named "Memorial to Claire and Charlotte Hart" to pay tribute to their mother and daughter.
Visitors to the site can share memories, pictures, videos and even light candles in the mother and daughter's memory.
The brothers wrote: "They were both very much loved and will always be remembered.
"Please share your memories and photos; let us help each other remember the wonderful people they were.
"Charlotte enjoyed making videos; especially surrounding horse riding and the dogs, and uploaded them to her YouTube channels. Enjoy :) "
The memorial website comes after an opening inquest into the deaths of the three family members last week revealed Lance had to be identified by his fingerprints after suffering a shotgun wound to the head.
They have also asked for donations to their favourite charity, Wood Green Animal Shelters.
In a tribute on the website, Luke said: "Charlotte and mum were both animal lovers. "They were both very much-loved and will always be remembered."
A full inquest will take place on October 19, when police have been asked by senior coroner for South Lincolnshire, Paul Cooper, to reveal how Lance had obtained the shotgun used.