A hacker who hijacked computers to make death threats has been jailed for eight years.
Yusuke Katayama played a game of cat and mouse with the authorities, leading them to make numerous wrongful arrests.
He threatened a massacre at a comic book event, as well as to attack a school attended by the grandchildren of Japan’s Emperor Akihito.
Katayama’s campaign highlighted the difficulties the country’s police force has had in dealing with cyber crime.
Source: BBC News