A Japanese court passed a death sentence to a 38-year-old Osaka's citizen, who gathered people for committing mass suicides and after that killed all the runners.
The murderer even signed on contracts with the victims on Internet, by which they agreed to voluntary take their own lives.
The convicted man first made appointments with his fellow-citizens and when they came, having the intention of killing themselves, he strangled them while shooting the crime with a camera.
Three people, aged 14 to 25, became victims of the Japanes, who was not proved to have some mental disorders.
The launching of web sites for gathering suicides turned out to be a vicious practice in Japan. In 2005, 91 Japanese nationals decided to take their lives sharing the "experience" with other people on the net.