When the Chestnut family goes to Market, what happens when Sarat tries to stab the Northern patrol soldier?

Sarat does not know that in the peace agreements, the Northern soldiers have been granted permission to patrol public areas. Sarat gets angry when she sees a Northern soldier in her native territory and she rushes forward to kill him with a butcher's knife. Benjamin screams and tries to stop her. The soldier turns around. The soldier is Marcus Exum.