Two Cold Cases: Frog Boys and The Setagaya Family

Setagaya Family Murder 2000

A murderer kills a family of four, and hangs around their house for hours after.

Japan has a very low crime rate, and this rocked the country.

The Frog Boys 1991

Five boys from South Korea went out looking for frogs to catch.

They vanished, and it wasn't until 11 years later, that their bodies were found.

They were found in a place that had been searched many times.

One of the biggest cases of South Korea.

Still unsolved.