i can't really say much other than i'm so sorry for the loss, my deepest condolences to the victim's family.
whatever the culprit's motive it's never right to kill other people, that's probably doesn't know anything. it's just... not.
also here's an attempt to draw Hyouka's main character (i forgot his name aaaa). i remember it was the anime that made me love mystery a lot. Kyoto Animation also influence my childhood too, Hyouka and K-ON are two of the anime and i always watch when i get home from school. their adaptation are always great, the animation quality is also top notch.
well, i hope all the victims can rest in peace