was the fault of American knife owners...
http://archives.cnn.com/2001/WORLD/asiapcf/06/08/japan.stabbing.02/At least eight dead in Osaka school rampageTOKYO, Japan -- A man armed with a kitchen knife has forced his way into an elementary school in western Japan killing at least eight children and injuring dozens, authorities and news reports said.
Most of the victims were first- or second-grade students.
Police official Toshihiko Ajisaka said 26 children, including those who died, and three teachers were stabbed. He said the stabbings occurred shortly after classes began at the elementary school in Osaka, in western Japan.
Police said the attacker, a 37-year-old man who carried a kitchen knife with a six-inch blade, was arrested at the scene, but was also injured and taken to a local hospital. The attacker was identified as Mamoru Takuma.
I agree with you that it is heartbreaking that such incidents happen anywhere, but thankfully they are exceedingly rare everywhere, including here.