Arglefumph plays a fan translation of the second Miles Edgeworth game, only released in Japan. The game's full title is "Ace Attorney Investigations: Miles Edgeworth: Prosecutor's Path". This is Episode 2, "The Imprisoned Turnabout".
In this video, we finish exploring the cell by noticing a security camera. The camera got footage of someone being attacked in the victim's cell. This makes it seem like Knightley was killed here, then moved to the prison later.
Agent Lang appears and chats with Edgeworth for a while about himself. Uh. Okay. Nice to see you, dude.
Edgeworth examines the lockers in the hall, to learn that one of the guards had his uniform stolen. Uncle Ray returns after this, and he says Knightley beat up a guard the day before his death. The key to the cell was lost during the struggle.
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