How does Finny react under Brinker's questioning? How well does he seem to remember the circumstances of the fall?

Finny avoids questions and deliberately lies that Gene was at the bottom of the tree rather than next to him. He desperately tries to protect his friend and leaves the telling for Leper who's already lost it (mentally). Unwilling to hear anymore or participate in Brinker's interrogation, Finny runs from the room.