N: he never identified what the sound/threat was.
D: He told me he thought it was a burglar.
N: What about the 3rd sound?
D: He told me it was the mag rack.
But which interview did OP tell him all this, the first one before OP testified, or the one after when the Prof asked to see him because he wanted clarification on issues that he could not reconcile with what OP had initially told him?