Lucy Letby's parents have always maintained their daughter's innocence even after she was found guilty of the harrowing crime of murdering seven babies. Dubbed the 'Angel of Death' , the nurse, 36, was convicted of the murders of seven infants and the attempted murders of seven others between June 2015 and June 2016 after she came under investigation following a high number of unexpected infant deaths that occurred at the neonatal unit of the Countess of Chester Hospital three years after Lucy