Who reported the news that Stacey got whipped in school? Who whipped Stacey and why? In Chapter 4

Little Willie reported that Stacey got whipped at school.... that he was whipped by Ma. She whipped him because she caught him with T.J.'s cheat notes.

Little Willie smiled. “Stacey inside with Miz Logan. He got whipped today.” “Whipped!” I cried. “Why, can’t nobody whip Stacey. Who done it?” “Your mama,” laughed Little Willie.

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“Why’d Mama do that?” asked Christopher-John. “She caught him with cheat notes during the history examination.”