Who threatens Scout’s first grade teacher with violence? In to kill a Mocking bird

To Kill a Mockingbird Novel by Harper Lee. The plots are based on the author's pals, family, and neighbor.

Explanation:

Scout’s first grade teacher with violence:

Miss Caroline Fisher is Scout's first-grade teacher and she is around twenty-one.Here, comes the main battle in this story is the character Atticus is a state legislative representative and he is a parent of two kids. He is assigned to represent Tom Robinson after  Bob Ewell attacks of abusing his daughter. Bob Ewell legislative representative. Then the kids of Atticus mocked their dad's decision.Finally, Boo Radley is the killer who warns scouts first standard teachers into violence. He always excites the kids' interest

Iam sorry i do not know the answer