**Q: Who is Lucy Letby?**
A: Lucy Letby is a nurse who has been accused of murdering infants at the Countess of Chester Hospital.
**Q: What incident did a mother witness involving Lucy Letby?**
A: The mother found Lucy Letby with her crying baby, who was bleeding from the mouth.
**Q: How did Lucy Letby appear to the parents of the murdered boy?**
A: She appeared to be 'kind' toward the parents during the public inquiry.
**Q: What is the context of the public inquiry mentioned in the article?**
A: The public inquiry is investigating the circumstances surrounding the deaths of infants at the Countess of Chester Hospital, including the actions of Lucy Letby.
**Q: What was the reaction of the mother upon finding her baby with Lucy Letby?**
A: The mother experienced horror upon discovering her baby in distress and bleeding while in the presence of Lucy Letby.