Late on Saturday night the body of the woman found murdered in Whitechapel, London, was identified by her eldest son, a machinist, and also by her husband, W. NICHOLLS, a machinist employed by a firm of Fleet-street printers. The police believe they have a clue to the murderer. This is the third murder that has been committed in the same district within a few months. In each case the victim was a woman, and the murder was committed in a ferocious manner.