Guns are tightly restricted in Japan, and shootings are extremely rare, with the one exception being gangsters, who most often use them against each other and do not generally victimize the general public.
7 reported dead in Tokyo stabbing rampage
Rare attacks
Stabbings, however, are less rare.
Gee...
Imagine that.
I find it rather ironic and amusing that the Japanese noted for their efficiency and intelligence just don't seem to get it.
Japanese Stabbing Rampage - Full Article/