Ms. Letby, a neonatal nurse in England, was convicted of murdering seven babies last year. But a growing number of experts have raised concerns about the evidence.

Lucy Letby was found guilty of the attempted murder of Baby K following a re-trial earlier this year, which saw her sentenced to a 15th whole life term for the attack on the premature infant

Lucy Letby, a former British nurse convicted of multiple child murders, lost her appeal attempt amid ongoing controversy about her trials. Accused of killing and attempting to murder babies at a hospital from 2015 to 2016,