Lucy Letby is a former neonatal nurse who was convicted in 2023 of murdering seven babies and attempting to murder six others while working at the Countess of Chester Hospital in the United Kingdom. Her case became one of the most widely reported criminal trials in modern British history due to the severity of the crimes and the fact that they involved vulnerable newborn infants in hospital care.

After a lengthy investigation and trial, Letby was found guilty by a jury in August 2023. The court concluded that she had deliberately harmed infants under her care in the neonatal unit. She was sentenced to a whole-life order, meaning she will spend the rest of her life in prison without the possibility of parole. The judge described her actions as “calculated, cold-blooded,” and “cruel and pitiless.”

The case prompted widespread public shock and led to major discussions about hospital safety, oversight, and safeguarding procedures within the NHS. It also raised questions about how warning signs may have been missed during the investigation period.

Letby has consistently denied responsibility and has no proven legal motive, as none is required for conviction. Her case has continued to attract attention, including later legal appeals and renewed public debate, but her convictions remain in place following court review.