Police have charged 25-year-old Nicholas Salvador with the murder of grandmother Palmira Silva, who was 'beheaded' in her back garden on Thursday.
Salvador is alleged to have killed a cat before attacking the 82-year-old pensioner in Edmonton, north London in broad daylight.
A man alleged to have beheaded an 82-year-old woman in her garden killed a cat beforehand, witnesses claim.
The witness, who did not want to be named, said: "There was a scream so I went to the windows and saw a guy with a machete with blood dripping from it. We saw a cat on the floor without a head."
A Metropolitan Police spokesman said they believed this to be the case but would not comment further on the case.
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