A notorious serial killer whose murders of two children in 1997 revolted the nation has risked stoking further public ire by apparently setting up a vanity website on which he says he will post updates about his life.

The site, named Sonzaino Taerarenai Tomeisa (The Unbearable Transparency of Being), declares that it is "former boy A's official home page."

Boy A is how the teen killer was referred to at the time of his trial, but he is better known to the nation as Seito Sakakibara, the pseudonym he used while taunting police.