[SeagullCrazy]

Originally Posted by Judoh

I think I might have gotten the names mixed up.

The detective actually does see Kanon in in episode 2 though. It's in the hallway before they go into the chapel, and in the chapel before Jessica and Kanon leave.

Oh.

It still works if Kanon and Shannon had the duel after Jessica and Kanon left the chapel. Because Shannon was supposedly with Kinzo writing his will, but we know that's impossible. So the duel takes place immediately before Kanon's disappearance, not at the beginning of the game.