Touhou is a murder simulator ZUN is an evil murderous mastermind (From the Japanese media)

From zakzak (japanese) via Canned Dogs:

Zakzak reports that doujinshi was found in the Akiba killer’s room, and according to his colleagues, he likes to sing “lolicon anime songs” and proclaimed that he only likes 2D girls. The Akiba killer had also previously said that he likes Akihabara and had showed his colleagues around the area to places such as maid cafes.

Zakzak continues reporting on the killer’s interests with games and CDs that the killer had given to a friend, including doujin games such as Eternal Fighter Zero and Chantelise, and the killer reportedly loves a certain “Moé anime girl danmaku shooter” for the PC.

Unless I’m mistaken (and I usually am), they are referring to Touhou.

The sterilization of Akihabara is going just as planned.