In the book roll of thunder hear my cry chapter 11 why did Stacey help after what he's done to TJ?

Despite his anger towards TJ for betraying his family, Stacey ultimately helps him because he knows that TJ is in grave danger and that it is the right thing to do as a person with a strong sense of justice and compassion. Stacey's actions demonstrate his integrity and empathy towards others, even in difficult circumstances.