Police are probing possible links between the murder of a disabled woman and the killing of a second woman almost exactly a decade earlier and just two miles away.
Officers investigating the death of 47-year-old Eliza Bibby last month have not ruled out a connection to the unsolved killing of Una Crown, 86, in January 2013.
The two unsolved cases have several striking similarities.
The bodies of both women were found in their own bungalows, in the same town just two miles apart and both had been stabbed in the neck. Both women lived alone.
Asked whether detectives were now linking the killings, a police spokesman said: "As both are still active murder investigations, we can’t comment on that."
Eliza Bibby was pronounced dead at her bungalow in Beechwood Road, Wisbech, on January 10 this year.
A 45-year-old man arrested on suspicion of her murder was found dead in his prison cell on January 25.
The man, of no fixed abode, had been arrested and bailed, but remanded in custody in connection with what were described as "unrelated allegations".
A 42-year-old woman from Wisbech was also arrested and bailed on suspicion of murder, but remanded in custody in connection with unrelated allegations.
A coroner opening the inquest into Ms Bibby's death earlier this week revealed she died from multiple stab wounds to the neck.
The same injuries were suffered by Mrs Crown.
The initial investigation into her murder a decade ago was marred by police failings.
The retired postmistress was attacked in her bungalow on Magazine Lane, on the other side of Wisbech, in January 2013, before her body was set on fire.
Officers who attended the scene - after her body was discovered in the hallway by her niece's husband - initially thought she had accidentally set herself alight while using her cooker.
They thought gashes to her neck had been caused by a scarf she had been wearing as she fell.
Two days later, a post-mortem examination revealed she had been repeatedly stabbed in the neck and chest before being set on fire.
A murder investigation was launched but by then any potential forensic evidence at the scene had been contaminated by people going in and out of the property.
Last month, on the 10th anniversary of her death and around the time of Ms Bibby's murder, police launched a fresh appeal for information.
Officers said fresh leads had emerged as a result.
BOTCHED INVESTIGATION
Last month's renewed appeal for help in solving the murder of Una Crown came a decade after a series of police failings hampered the initial inquiry.
Her body was found surrounded by burnt newspaper and lying in a pool of blood.
Police initially thought she had accidentally set herself alight, and later apologised to Mrs Crown's family after concluding she had been killed.
On the 10th anniversary of the death, Mrs Crown's niece, Judy Payne, told the BBC she believed the case would have been solved without "big mistakes" in the police investigation.
Mrs Payne's husband, John, found the body on the morning of January 13, 2013.
Two officers who attended the scene concluded the death was not suspicious, believing Mrs Crown's clothing had accidentally caught fire from a faulty hob ring which she tried to put out with a tea towel, panicked and died from a heart attack.
Her family were allowed into the house to collect her belongings, but two days later they were told her death was being treated as murder.
The post-mortem examination had indicated her cause of death. Hand injuries revealed she had struggled with her attacker.
By the time the murder investigation had been launched, the floor of the bungalow had been mopped to clean up muddy footprints - some of which could have been left by the killer.
And potential forensic evidence at the scene had been contaminated by people going in and out of the property, touching light switches, door handles and other items.
BBC1's Crimewatch aired a reconstruction of the killing in April 2013.
It showed Mrs Crown sitting on her sofa and chatting to a friend before going to the door of her home.
On the show, police revealed £40 in cash and Mrs Crown's wedding ring were stolen.
They also said they did not believe the knife used to kill her had come from her home.
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