Prometheus doesn't show up until the trial is already underway. He slips in and stays in the periphery of the room, out of way and out of mind. There's no spite, sympathy or... anything, really. To Rinzler, his expression would be more reminiscent of Pandora's than what could be expected from him.

He makes notes of who shows up: two people with the same face as Rinzler's, his room mates, that girl... And plenty more. Well, Rinzler had attacked several people and killed at least two, this sort of turn out was expected. The Reploid leaves quietly as discussions about how to handle Rinzler gets underway and doesn't cast a vote.

Away from the mess hall and out of ear shot, he starts laughing like this is the funniest thing he's ever seen.