Mark Deakin died last month in Liverpool (Picture: Royal College of Paediatrics and Child Health) A doctor described during the trial of Lucy Letby as her ‘boyfriend’ has been named and pictured for the first time after he died on the anniversary of the serial killer nurse’s arrest. Mark Deakin had worked with the neonatal nurse at the Countess of Chester Hospital during the period she murdered seven babies and tried to kill seven more. Key points and original sources are listed below.

• Mark Deakin died last month in Liverpool (Picture: Royal College of Paediatrics and Child Health) A doctor described during the trial of Lucy Letby as her ‘boyfriend’ has been named and pictured for the first time after he died on the anniversary of the serial...S1

• Mark Deakin had worked with the neonatal nurse at the Countess of Chester Hospital during the period she murdered seven babies and tried to kill seven more.S2