If Jim expects Richard to tell him that it wasn't his place to end it, or anything so maudlin, Richard spares it. It's nothing Jim doesn't already know, or else he wouldn't have done it in the first place.

He instead nods toward some nearby chairs. "I'm sitting down for this," he says. "I don't know what this thing'll do to me."

He moves to go sit down, though not with much comfort. He's more tense now than he was when he thought Jim had brought him up here to tear his trachea out.