Well, I'm not too big to admit when I'm wrong: despite my previous assessment and all evidence to the contrary, I announced
last week that the 10 Commandment Killer on
AMFSNYAPCTNLAHS was not, in fact, John Lowe. Instead, based on the information gleamed from Wren (not Red, although that made a nice little callback to Lowe's daughter, Scarlett) at the looney bin, I assumed that James Marsh had committed the murders himself, using Wren as his vessel in order to shed blood outside the Hotel Cortez.