**Q: Who expressed feelings of shame regarding the case of Lucy Letby?**
A: A former colleague of Lucy Letby expressed feelings of shame for failing to protect the babies from harm.
**Q: What was the context in which the former colleague made this statement?**
A: The statement was made during a public inquiry into the actions of Lucy Letby, who has been accused of killing babies.
**Q: What specific emotions did the former colleague convey about the situation?**
A: The former colleague conveyed feelings of shame and regret for not being able to protect the vulnerable infants.
**Q: What is the significance of the public inquiry mentioned in the article?**
A: The public inquiry aims to investigate the circumstances surrounding the deaths of the babies and the actions of healthcare professionals involved, including Lucy Letby.
**Q: What is Lucy Letby accused of?**
A: Lucy Letby is accused of killing multiple babies while working as a nurse in a neonatal unit.