My sister said she was staying with a 'great' family and told us not to worry. Three months later, she was murdered, dismembered and buried under a patio. For the first time, this is the truth about our family's nightmare: DEZRA CHAMBERS

5 hours ago 2

Written in touchingly neat handwriting, the letter 16-year-old Alison Chambers sent home to her mum in May 1979 declared that she was settled and happy.