Final answer:
Aunt Alexandra expresses her grief and shock in response to the former events in To Kill a Mockingbird. She reveals that the people involved were murdered before leaving.
Step-by-step explanation:
In To Kill a Mockingbird, Aunt Alexandra responds to the former events by expressing her grief and shock. She reveals that the people involved were murdered before leaving, indicating the extreme measures taken by her father. This revelation stuns John, the person she is speaking to. The dialogue highlights the tragic and violent nature of the events in the book.