That's not a knife...

It's a katana.

Just now the news on tv is reporting a pretty crazy piece of news. A 63 year old man in Utsunomiya, Tochigi apparently went on a rampage at a realty office, and started hacking away.

With a katana.

3 people were injured in the attack, and one of them lost an arm (yikes!).

Here's a link to a news article about the attack (in Japanese).

According to witnesses, the man ran down from the 2nd floor and just started chopping. After the attack he ran off, but was apprehended an hour later.