[That observation makes Keldor think. He had been justifiably upset when the declaration of exile for murder was given; so much that he'd never really thought much beyond it save to use it as his motivation to take back the crown.]

I ... do not know. I... I thought I knew Randor—knew him better than just about anyone...

[He really wants to deny that that was Randor's motive. But Radley's speaking sense here.]

But now I cannot be sure.