The Supreme Court on Friday finalized the death sentence for a former member of the Aum Shinrikyo doomsday cult after rejecting his appeal, sources familiar with the matter said Saturday.

Kiyohide Hayakawa, 60, was convicted in connection with a series of crimes, including the 1989 murders of an anti-Aum lawyer and his family. He was sentenced to death by the Tokyo District Court in 2000, a decision that was upheld by the Tokyo High Court in 2004 and the Supreme Court on July 17.

Hayakawa is the sixth member of the cult to land on death row. Aum founder Shoko Asahara, whose real name is Chizuo Matsumoto, and four other former followers are also waiting to be hanged.