Factual error: When Sam and Dean are showing Jo pictures of H. H. Holmes' victims, the last picture was a victim that was not his. The final black and white is Jack the Ripper's third victim, Elisabeth "Long Liz" Stride.
Supernatural (2005)
1 mistake in No Exit
Dean Winchester: Driver picks the music. Shotgun shuts his cakehole.
More trivia for Supernatural
Question: In the one episode Gabriel attempted to kill Lucifer with his archangel blade. Even though he didn't succeed, why didn't they attempt to do use one before? Couldn't Cas have given them one, or gotten one if an archangel's blade is different then an angel blade (I'm not sure), or would it have even killed Lucifer, because he is an angel after all?
Answer: Angel blades come from angels. It's their angelic magic that makes it special. Therefore, an archangel blade is made magical with the powers of an archangel. They couldn't have just created one or used one, as none of them are archangels.