Finished it up last night, taking pics of all the things that made the filament glow (and guiltily laughing at the ghost that keeps falling from the stairs) when at some point, I take a picture of a blue ghost, I think in the Kiryu house, and I get a picture with the title of "Dave Halverson." From whatever little I can find, that name belongs to a controversial video game journalist, who has been an author for numerous gaming magazines.
The spirit list also says: "scours the afterlife to fill a void left by his bethrothed black widow."
Since this was the only American-sounding name in a game set in a lost Japanese village, I figure he won a contest or something, but I can't find much about it on Google. Can anybody tell me what the deal with this is?