In this episode Caroline and Liz examine the case of Baby D, a baby girl born full term, who was admitted to the neo-natal unit with an infection because of a hospital mistake. We hear testimony from her devastated parents who say they saw Lucy Letby ‘hovering’ around their daughter’s cot hours before she died. We also have a fascinating interview with a court artist, who has drawn defendants and court scenes of some of the world's most significant criminal trials over her 30-year career.