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- Mr Butler has a rare skin condition, which means he sheds flakes of skin, leaving behind much larger traces of DNA than the average person. He worked as a taxi driver, and so it was possible for his DNA to be transferred from his taxi via money or another person, onto the murder victim.
www.bbc.co.uk/news/science-environment-19412819
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Aug 31, 2012 · The police had accused Mr Butler of murdering a woman, Anne Marie Foy, in 2005 - his DNA sample was on record after he had willingly given it to them as part of an investigation into a...
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Apr 19, 2018 · In 2011, DNA found on the fingernails of a woman who had been murdered six years earlier was run through a database and matched Butler's. He swore he'd never met the woman.
Jan 27, 2017 · The amount of DNA found by police was tiny, but enough to generate a hit against the UK’s DNA database, identifying Mr Butler as the source. He denied ever having met the victim, but even though other evidence was lacking, the DNA evidence was enough to see him charged with murder.
Aug 15, 2018 · It did to David Butler, an English cabdriver accused of a murder that he said he did not commit. Investigators targeted Butler when they found his DNA under the victim’s fingernails six years after she was killed.
But the prosecution have what they say is conclusive evidence: traces of Butler’s DNA under the victim’s nails. There is, says Mr Nigel Power, the prosecuting QC, “a one billion-to-one chance” that the DNA belongs to anyone else.
Five years after Anne-Marie Foy's body was found bludgeoned to death in 2005, David Butler was arrested for her murder. Police claimed they had evidence linking him to the crime. His DNA had been stored on the national database following a break in at his mother's house in 1998.
However, Mr Butler’s defence team queried precisely how that DNA got onto the victim’s nails. They established that he was sometimes known by the nickname “flaky”, because of the dry skin condition he suffered from, and suggested that perhaps some of his skin cells
