I am surprised this did not end in suicide, as is usually the case with these "things" (not that I want to banalize the event) Now while my heart goes out to the victims, I have another concern. It has not been specifically said yet that the crime is to be blamed on video games/anime/manga/subculture (that usually pops up 2 or 3 days after the crime, out of respect for the families of the deceased), but I wouldn't rule it out. Sorry, what I meant was it will happen. Now Japan, even though it has given us Elfen Lied and cockroach porn, has been ramping up control of violent and pornographic content. While there will always be an underground scene, one only needs to look at the censored Japanese release of No More Heroes, whereas we got the intended version. Otakus in Japan still bear a heavy stigma, thanks to Tsutomu Miyazaki and his manga-inspired murders of the late eighties. Undoubtedly, this new episode will end the same way: Tomohiro Kato will end up on death row one day, and Japanese Otakus will suffer from a new wave of moral panic backlash.
For pictures of the crime scene and additional reporting, head to Akibablog.