User blog comment:Seieireppa/Nanako’s Magical☆Mystery☆Adventure, part 4/@comment-10225593-20150317130601/@comment-1419424-20150317143025

1) The culprit is human .  Additionally, the culprit is one of the characters introduced in the story so far.

2) I would love to write a JoJo murder mystery... but Diamond is Unbreakable already exists, lol

3) NOPE.  GO AWAY KYUBEY.  I WON'T MAKE A CONTRACT WITH YOU

4) Knox's First:   The criminal must be someone mentioned in the early part of the story .  For the purposes of this mystery, I will limit this to the first three parts and permit anyone whose potential status as the culprit has not been forbidden by the red.