A 70-year-old man has been found guilty of the murder of an 86-year-old widow in 2013 after DNA matching his profile was found on her nail clippings.

       Retired postmistress Una Crown was found with her throat cut, stab wounds to her chest and her clothing set on fire in her bungalow in Wisbech, Cambridgeshire, on January 13 2013.

       Police did not initially consider her death suspicious and there was a two-day delay in preserving the scene due to what prosecutor John Price described as a "grave error of judgment by police officers who went to the house".

       Former kitchen installer David Newton, of Magazine Close in Wisbech, was charged last year with murdering Mrs Crown. He denied the offence at her home in Magazine Lane on January 12 2013, but has been found guilty after a trial at Cambridge Crown Court.

       Newton was charged in April 2024 after DNA evidence taken at the time of the crime was reviewed. A jury, by a majority of 10 to two, found Newton guilty after a trial lasting more than three weeks.

       Detective Superintendent Iain Moor of Cambridgeshire Police said afterwards that "mistakes were made during the initial investigation in 2013, for which we have apologised to Una's family".

       Mr Moor, who became the senior investigating officer in the case, said it was looked at again "as part of our normal review processes in October 2022".

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       He said: "Vital evidence was retained from the 2013 crime scene, in the form of DNA under the fingernails of Una Crown's right hand. It was through pioneering new techniques, testing for male DNA only, that gave the evidence breakthrough which has been so crucial.

       "This DNA testing technique was not available in 2013.

       "The DNA allowed us to cast doubt on David Newton's claims that he hadn't seen Una on the day, or days, before her death and place him at the scene of her murder.

       "For more than a decade he thought he had gotten away with this most horrendous crime, but today's result shows you cannot hide forever."

       Mr Moor said he hoped that the guilty verdict "gives Una's family the closure they deserve and the answers they have longed for", adding: "My thoughts are very much with them at this time."

       Mrs Crown's body was found in her hallway on January 13 by John Payne, the husband of her niece Judith Payne, who had driven to collect her to take her for Sunday lunch at their house.

       Prosecutors said she had been killed the day before and that DNA evidence was the "nucleus of the case".

       Mr Price told jurors when opening the case that "male DNA, the profile of which matches that of David Newton", was discovered by scientists in 2023.

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       He said this was "on nail clippings, which had been taken from the fingers and thumb of the unburnt right hand of Una Crown". Clippings had been taken at a post-mortem examination in 2013.

       The barrister said the reason why Newton "went to her house on that night and as to why he then did to her what he did, these are not matters that the prosecution need prove".

       But he said the defendant was on state benefits in 2013 and they were his only source of regular income.

       Mr Price said money was missing from Mrs Crown's handbag and Newton was "spending freely" on January 13, playing a fruit machine on two visits to Wisbech Ex-Servicemen's Club on January 13.

       The prosecutor said there was evidence that Newton had been drunk on the night of January 12 and had been "pestering elderly women on the telephone".

       Newton is to be sentenced by judge Mr Justice Neil Garnham.