The final murder Fred and Rose are known to have committed with a definite sexual motive occurred on 5 August 1979. The victim was a 16-year-old named Alison Chambers, who had run away from a local children's home to become the Wests' live-in nanny in the middle of 1979. Chambers is believed to have lived within their household for several weeks before her murder, and Rose promised Chambers she could live at a rural "peaceful farm" she claimed she and Fred owned. Her body was also buried in the garden of Cromwell Street, close to the bathroom wall, and although Chambers was likely dismembered, her skeleton was not marked by striations as the earlier victims' bodies had been. In an effort to allay any concerns from Chambers' family (with whom she maintained regular correspondence), Fred and Rose later posted a letter written by Chambers to her mother prior to her murder from a Northamptonshire post box.