Lucy Letby, a convicted murderer serving a whole-life sentence for killing seven infants, is being investigated for more suspicious infant deaths during her time as a neonatal nurse. Recently interviewed in prison by detectives, Letby faces scrutiny related to the unexpected deaths and collapses at the Countess of Chester Hospital and Liverpool Women’s Hospital. This inquiry is examining a period from January 2012 to June 2016, as medical professionals suspect she may have attacked more babies than previously recorded.