In this episode, Cal explores the demonic components of the Hae Min Lee murder in respectful fashion.

 

http://www.mysticfiles.com/possessed-warning-signs-of-demonic-possession/

http://www.ridingthebeast.com/numbers/nu13.php

http://hypnobishoujoland.wikia.com/wiki/Incubus

http://unnaturalworld.wikia.com/wiki/Incubus

http://adventofdeception.com/origin-christmas-connection-occult/