During the final weeks of his life, those who knew RAF chief engineer Alan Warrender (left) watched him become a shadow of his former self. If he had always been partial to the odd glass of whisky, then by the spring of 1993 he was drinking it in alarming quantities. The 43-year-old father of four was in despair, struggling with spiralling debts and chased down by loan sharks. But what pushed him over the edge in April that year was the discovery that his wife, Penny, was cheating on him. While Alan took his own life days after finding out about her affair, Penny went on to marry her lover (right) and two decades later, in a crime that shocked the nation, stabbed him to death in cold blood at their home in Somerset while he was on the phone to the emergency services. destroyed by the so-called 'pyjama killer'.
Did the M&S; pyjama killer drive ANOTHER of her husbands to his death? Dramatic new testimony from third spouse's relative raises disturbing question after murder case that transfixed Britain
