By my count, only two kills were directly shown: her mother and Iwata. A possible third if Kumai doesn't survive his stabbing. The ones where she hasn't (yet) been directly shown to be the murderer but is strongly hinted are: Miura, Yuki, and Toyokawa. So possibly six kills in total.Freudian excuse for her background story. How many people did she kill anyway? Four?
Well the story does have multiple instances of the characters misinterpreting the meanings behind the drawings, so it kinda recognises the shortcomings of this too. It's one of the things I like about it, the way it shows that sometimes the armchair interpretation can be way off base from the truthI know a theme in this story is meaning embedded in art, but I can't help but feel that art is a semi-permeable membrane - great for expressing, but not as much for perceiving...