Tearful Amanda Knox reveals she has sent jailed baby killer Lucy Letby a copy of her book 'Free'.The 38-year-old, twice convicted and later acquitted of murdering British student Meredith Kercher in Italy, broke down in tears during a Q&A at Greenwich Picturehouse in London while promoting her new documentary Mouth of the Wolf.Knox said she also wrote a personal letter to Letby and another to Letby’s parents, but has not spoken to her directly.She told the audience: “You do not need a smoking gu

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