You again ? Thanks a lot for the kind word.
Testimonies are repetitive because the guest's movement is, unfortunately, completely random. They just aimlessly jump from room to room.
Strange testimonies can, however, indicate a lie if a guest move to the same colored room twice in a row or manage to teleport to a room that's not adjacent to the one they were currently in. They'll usually avoid admiting that they've entered the crime scene at all cost.