How does Capote manage to create sympathy for Nancy Clutter?

the question word for word:

In the course of In Cold Blood, Truman Capote manages to create sympathy for almost every character at some point, whether the character is a murderer, a law-enforcement official, or an ordinary citizen. Select two characters- from two of the categories above- and in a well-organized essay, discuss how Capote creates sympathy for those two characters. Use specific evidence from the work to support your point.

(I already decided to use Perry as one of my characters)

Thanks!