Asahara, whose real name is Chizuo Matsumoto, is facing a total of 17 charges for masterminding the Tokyo subway gas attack which killed 12 people and made 6,000 ill.
Japanese courts are often lenient if someone accused of a crime shows remorse.
During her previous trial, Matsumoto admitted to being present at the crime but denied conspiring with other cult members to kill Ochida. Asahara out of pity due to his poor eyesight. They married in January 1978, when she was only 18. The first of their six children arrived six months later. The Japanese government is considering submitting a bill to the next session of parliament that would restrict the activities of Aum and similar groups.