During his trial, Evans accused his downstairs neighbour, John Christie, who was the chief prosecution witness, of committing the murders. Three years after Evans's execution, Christie was found to be a serial killer who had murdered several other women in the same house, including his own wife (Ethel). Before his execution, Christie confessed to murdering Mrs. Evans. An official inquiry concluded in 1966 that whilst Evans had probably murdered his wife (Beryl), Christie had probably murdered Evans's daughter (Geraldine), and Evans was granted a posthumous pardon."